12mm Thick - Double Concave - Premium Optical Glass Lens
20mm Focal Length - Optically True - Ground
5" (125mm) Surface
Beveled Edges - Eisco Labs
Top Spinning Base
Top Spinning Base, 5" (125mm) Surface, 12mm Thick - Double Concave - Premium Optical Glass Lens, 20mm Focal Length - Optically True - Ground, Beveled Edges - Eisco Labs
Rеvіеw Prоduсt Top Spinning Base, 5 (125mm) Surface, 12mm Thick - Double Concave - Premium Optical Glass Lens, 20mm Focal Length - Optically...