| 14OAP-3-127-45-AL 76.2 mm Dia. Aluminum 45° Off-Axis Parabolic Mirror; EFL=148.79mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-3-152.4-45-AL 76.2 mm Dia. Aluminum 45° Off-Axis Parabolic Mirror; EFL=178.53mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-4-152.4-45-AL 101.6 mm Dia. Aluminum 45° Off-Axis Parabolic Mirror; EFL=178.55mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-76.2-60-AL 50.8 mm Dia. Aluminum 60° Off-Axis Parabolic Mirror; EFL=101.6mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-1-12.7-90-AL 25.4 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=25.4mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-25.4-90-AL 50.8 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=50.8mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-3-25.4-90-AL 76.2 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=50.8mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-3-76.2-90-AL 76.2 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=152.4mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-3-88.9-90-AL 76.2 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=177.8mm Protected Aluminum | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-1-381-15-GM 25.4 mm Dia. Aluminum 15° Off-Axis Parabolic Mirror; EFL=387.6mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-1-635-15-GM 25.4 mm Dia. Aluminum 15° Off-Axis Parabolic Mirror; EFL=654.99mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-304.8-15-GM 50.8 mm Dia. Aluminum 15° Off-Axis Parabolic Mirror; EFL=310.08mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-508-15-GM 50.8 mm Dia. Aluminum 15° Off-Axis Parabolic Mirror; EFL=516.81mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-4-381-15-GM 101.6 mm Dia. Aluminum 15° Off-Axis Parabolic Mirror; EFL=387.6mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-4-508-15-GM 101.6 mm Dia. Aluminum 15° Off-Axis Parabolic Mirror; EFL=516.81mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-1-50.8-30-GM 25.4 mm Dia. Aluminum 30° Off-Axis Parabolic Mirror; EFL=54.45mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-127-30-GM 50.8 mm Dia. Aluminum 30° Off-Axis Parabolic Mirror; EFL=136.12mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-254-30-GM 50.8 mm Dia. Aluminum 30° Off-Axis Parabolic Mirror; EFL=272.24mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-3-254-30-GM 76.2 mm Dia. Aluminum 30° Off-Axis Parabolic Mirror; EFL=272.23mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-4-304.8-30-GM 101.6 mm Dia. Aluminum 30° Off-Axis Parabolic Mirror; EFL=326.69mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-1-101.6-45-GM 25.4 mm Dia. Aluminum 45° Off-Axis Parabolic Mirror; EFL=119.02mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-50.8-45-GM 50.8 mm Dia. Aluminum 45° Off-Axis Parabolic Mirror; EFL=59.51mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-3-152.4-45-GM 76.2 mm Dia. Aluminum 45° Off-Axis Parabolic Mirror; EFL=178.53mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-4-101.6-45-GM 101.6 mm Dia. Aluminum 45° Off-Axis Parabolic Mirror; EFL=119.03mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-4-152.4-45-GM 101.6 mm Dia. Aluminum 45° Off-Axis Parabolic Mirror; EFL=178.55mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-1-50.8-60-GM 25.4 mm Dia. Aluminum 60° Off-Axis Parabolic Mirror; EFL=67.74mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-76.2-60-GM 50.8 mm Dia. Aluminum 60° Off-Axis Parabolic Mirror; EFL=101.6mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-3-76.2-60-GM 76.2 mm Dia. Aluminum 60° Off-Axis Parabolic Mirror; EFL=101.6mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-1-25.4-90-GM 25.4 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=50.8mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-1-50.8-90-GM 25.4 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=101.6mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-25.4-90-GM 50.8 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=50.8mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-2-95.3-90-GM 50.8 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=190.5mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-3-76.2-90-GM 76.2 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=152.4mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-4-50.8-90-GM 101.6 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=101.6mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 14OAP-4-76.2-90-GM 101.6 mm Dia. Aluminum 90° Off-Axis Parabolic Mirror; EFL=152.4mm Protected Gold | Optics | Mirror | Off-Axis Parabolic Mirror | Standa | N-BK7 | Circular |
| 10DC1000AL.2 25.4 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=500mm Enhanced Aluminum 250-600nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 10DC1000ER.1 25.4 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=500mm Enhanced Aluminum 450-700nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 10DC1000ER.2 25.4 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=500mm Protected Silver 480-20000nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 10DC100AL.2 25.4 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=50mm Enhanced Aluminum 250-600nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 10DC100ER.1 25.4 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=50mm Enhanced Aluminum 450-700nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 10DC200ER.1 25.4 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=100mm Enhanced Aluminum 450-700nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 10DC500ER.1 25.4 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=250mm Enhanced Aluminum 450-700nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 10DC500ER.2 25.4 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=250mm Protected Silver 480-20000nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 20DC1000ER.2 50.8 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=500mm Protected Silver 480-20000nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 20DC100ER.1 50.8 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=50mm Enhanced Aluminum 450-700nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 20DC100ER.2 50.8 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=50mm Protected Silver 480-20000nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 20DC2000ER.2 50.8 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=1000mm Protected Silver 480-20000nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 20DC200AL.2 50.8 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=100mm Enhanced Aluminum 250-600nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 20DC200ER.2 50.8 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=100mm Protected Silver 480-20000nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 20DC500AL.2 50.8 mm Dia. Borofloat 33 Concave Broadband Metallic Mirror; EFL=250mm Enhanced Aluminum 250-600nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | Borofloat33 | Circular |
| 10BV50UF.20 25.4 mm Dia. N-BK7 High Reflecting Concave Pump Mirror; EFL=250mm Broadband Ultrafast 710-890nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | N-BK7 | Circular |
| 10BV200UF.20 25.4 mm Dia. N-BK7 High Reflecting Concave Pump Mirror; EFL=1000mm Broadband Ultrafast 710-890nm | Optics | Mirror | Curved Mirror (Concave) | MKS/Newport | N-BK7 | Circular |
| MCM0025-50-UVMAL 25.4 mm Dia. N-BK7 Metal Coated Concave Mirror; EFL=25mm UV Protected Aluminum 250-700nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| MCM0025-150-UVMAL 25.4 mm Dia. N-BK7 Metal Coated Concave Mirror; EFL=75mm UV Protected Aluminum 250-700nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0050-50-1028-1080 50.8 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=25mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0050-300-515-532 50.8 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=150mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0050-300-1028-1080 50.8 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=150mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0050-250-1028-1080 50.8 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=125mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0050-2000-515-532 50.8 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=1000mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0050-200-515-532 50.8 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=100mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0050-150-515-532 50.8 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=75mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0050-100-515-532 50.8 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=50mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-500-515-532 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=250mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-500-1028-1080 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=250mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-300-1028-1080 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=150mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-250-515-532 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=125mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-250-1028-1080 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=125mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-2000-515-532 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=1000mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-2000-1028-1080 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=1000mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-200-1028-1080 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=100mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-150-515-532 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=75mm 515-532nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| DCM0025-150-1028-1080 25.4 mm Dia. N-BK7 Dielectric Concave Mirror; EFL=75mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | N-BK7 | Circular |
| 3006050309 10 mm Dia. UVFS Dielectric Concave Mirror; EFL=685mm 1028-1080nm | Optics | Mirror | Curved Mirror (Concave) | Union Optic | UVFS | Circular |
| HRM0025-25-MAU 25.4 x 25.4 mm N-BK7 Hollow Roof Prism Mirror; 6.3 mm Protected Gold | Optics | Mirror | Roof Prism Mirror | Union Optic | N-BK7 | Rectangular |
| HRM0025-25-MAL 25.4 x 25.4 mm N-BK7 Hollow Roof Prism Mirror; 6.3 mm Protected Aluminum | Optics | Mirror | Roof Prism Mirror | Union Optic | N-BK7 | Rectangular |
| HRM0025-25-EAL 25.4 x 25.4 mm N-BK7 Hollow Roof Prism Mirror; 6.3 mm Enhanced Aluminum | Optics | Mirror | Roof Prism Mirror | Union Optic | N-BK7 | Rectangular |
| RAM0105-E-MAG N-BK7 Right Angle Prism Mirror; 5 mm Silver on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0105-E-MAL N-BK7 Right Angle Prism Mirror; 5 mm Aluminum on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0110-E-EAL N-BK7 Right Angle Prism Mirror; 10 mm Enhanced Aluminum on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0110-E-MAG N-BK7 Right Angle Prism Mirror; 10 mm Silver on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0112-E-EAL N-BK7 Right Angle Prism Mirror; 12.7 mm Enhanced Aluminum on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0112-E-MAG N-BK7 Right Angle Prism Mirror; 12.7 mm Silver on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0112-E-MAL N-BK7 Right Angle Prism Mirror; 12.7 mm Aluminum on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0112-E-MAU N-BK7 Right Angle Prism Mirror; 12.7 mm Gold on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0115-E-MAL N-BK7 Right Angle Prism Mirror; 15 mm Aluminum on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0120-E-MAG N-BK7 Right Angle Prism Mirror; 20 mm Silver on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0125-E-MAG N-BK7 Right Angle Prism Mirror; 25.4 mm Silver on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0125-E-MAL N-BK7 Right Angle Prism Mirror; 25.4 mm Aluminum on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0130-E-MAL N-BK7 Right Angle Prism Mirror; 30 mm Aluminum on hypotenuse | Optics | Mirror | Right-Angle Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0025-K-MAU N-BK7 Knife-Edge Right-Angle Prism Mirror; 25.4 mm Protected Gold Legs | Optics | Mirror | Knife-Edge Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0025-K-MAL N-BK7 Knife-Edge Right-Angle Prism Mirror; 25.4 mm Protected Aluminum Legs | Optics | Mirror | Knife-Edge Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0012-K-MAU N-BK7 Knife-Edge Right-Angle Prism Mirror; 12.7 mm Protected Gold Legs | Optics | Mirror | Knife-Edge Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0012-K-MAL N-BK7 Knife-Edge Right-Angle Prism Mirror; 12.7 mm Protected Aluminum Legs | Optics | Mirror | Knife-Edge Prism Mirror | Union Optic | N-BK7 | Volume |
| RAM0012-K-MAG N-BK7 Knife-Edge Right-Angle Prism Mirror; 12.7 mm Protected Silver Legs | Optics | Mirror | Knife-Edge Prism Mirror | Union Optic | N-BK7 | Volume |
| MRAK25-M01 N-BK7 Knife-Edge Right-Angle Prism Mirror; 25.0 mm Protected Gold Legs | Optics | Mirror | Knife-Edge Prism Mirror | Thorlabs | N-BK7 | Volume |
| DIM0025-51-45 25.4 mm Dia. N-BK7 Dichroic Mirror; t=6.35mm | Optics | Mirror | Dichroic Mirror | Union Optic | N-BK7 | Circular |
| DIM0025-15-0 25.4 mm Dia. N-BK7 Dichroic Mirror; t=6.35mm | Optics | Mirror | Dichroic Mirror | Union Optic | N-BK7 | Circular |
| DIM0020-51-45 20 mm Dia. N-BK7 Dichroic Mirror; t=5mm | Optics | Mirror | Dichroic Mirror | Union Optic | N-BK7 | Circular |
| DIM0020-15-45 20 mm Dia. N-BK7 Dichroic Mirror; t=5mm | Optics | Mirror | Dichroic Mirror | Union Optic | N-BK7 | Circular |
| DIM0020-15-0 20 mm Dia. N-BK7 Dichroic Mirror; t=5mm | Optics | Mirror | Dichroic Mirror | Union Optic | N-BK7 | Circular |