Hollow Glass Prism & Stopper, 2x2x2" - Great for Studying Snells Law of Refraction - Eisco Labs

Hollow glass cube, made from glass plates properly cemented. Size 50 x 50 x 50 mm Cube. Stopper included. Excellent tool for optical experimentation, as well as for studying Snells Law of Refraction. Change the liquids or gases in the cube to change the refraction properties.