Set Of Prisms Boxed set of High Quality Acrylic Prisms, made from clear acrylic sheet, all sides polished. The set consists of sic prisms in a variety of shapes, and an activity guide. Shipping weight - 1.25 lb, dimensions: 10 x 8 x 2. Includes: 1 Rectangular block, 1 Semi-circle, 1 Equilateral prism, 1 Double convex lens, and 2 Double concave lenses. Set of 6 prisms Qty :