Round Double Convex High Optical Purity Glass Lens - 2" (50mm) Diameter - 50mm Focal Length

• This round double convex high optical purity glass lens is designed for physics and educational uses.
• It is approximately 2" (50mm) diameter and 5.5mm thick. Note, thickness varies as they are not designed to be consistent in that respect.
• Because of their educational use design, there may be minor imperfections that do not affect physical function.
• 50mm Focal Length