Double Convex Lens, 50mm Focal Length, 2" (50mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs sold2026 With its antioxidant properties

With its antioxidant properties

and coil stabilizers inside the brace keep your joint in the proper position without stiffness or discomfort

and corrosion resistance

3/8 inch JT21 Staple Strip

Double Convex Lens, 50mm Focal Length, 2" (50mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs sold2026 With its antioxidant propertiesDouble Convex Lens, 50mm Focal Length, 2" (50mm) Diameter Spherical, Optically Worked Glass Lens Ground Edges, Polished Great for Physics Classrooms Eisco Labs Product Features DOUBLE CONVEX Highly polished, double convex lens SPHERICAL Lens measures 2" (50mm) in diameter 50MM FOCAL LENGTH Converging lens with a 50mm focal length OPTICALLY WORKED GLASS Made of high quality, optically worked glass. Highly polished with ground edges GREAT FOR PHYSICS