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Description
Set of 6 acrylic demonstration lenses includes one each of double convex, double concave, plano convex, plano concave, concavo convex, and convexo concave. Diameter of each lens is 38 mm; focal length of each lens is 50 mm. Set includes activity guide and storage box.
Set of 6 acrylic demonstration lenses includes one each of double convex, double concave, plano convex, plano concave, concavo convex, and convexo concave. Diameter of each lens is 38 mm; focal length of each lens is 50 mm. Set includes activity guide and storage box.