2.0 Inch (50.8mm) Flex Laser- APC Made In the USA Focal Lens - Laser Optic length ZnSe meniscus focus 20 mm diameter lenses

Flex Laser 2.0 Inch (50.8mm) Focal Lens. 2"" Laser Optics.

Focal: 2"" (50.8 mm)

Diameter: 20 mm

Brand: Flex Laser (By APC - American Photonics)

Manufacturer's Warranty: 1 month (The warranty doesn't cover scratches, bad or lack of maintenance)