
The United Scientific® Right-Angled Acrylic Prism Set is a 3-piece set of clear acrylic right-angled prisms, one each 25 mm, 50 mm, and 100 mm long, with highly polished surfaces for projecting a clear, sharp spectrum. Physics and general science teachers use it for refraction, dispersion, and total internal reflection demonstrations, from whole-class projection to individual student benches.