Feature
●High Accuracy and Precision
●Made from High Grade Optical Glass
●50mm Diameter, 3 Double Convex (20, 30, 50cm FL) and 3 Double Concave (20, 30, 50cm FL)
[50mm (2-Inch) 6-pack]
[75mm (3-Inch) 2-pack]
Description
[50mm (2-Inch) 6-pack]
[75mm (3-Inch) 2-pack]