Lotus Connect Store › Acrylic Cube, Solid, 2" sides - Eisco Labs Acrylic Cube, Solid, 2" sides - Eisco Labs $16.51 Made of Acrylic2" Solid CubePerfect for refraction experimentsSolid, 2" acrylic cube. Perfect for physics refraction experiments. Quantity: Add To Cart Added! Made of Acrylic2" Solid CubePerfect for refraction experimentsSolid, 2" acrylic cube. Perfect for physics refraction experiments.