25 mm Glass Cube Prism, RGB Dispersion Prism, for Teaching of Optics, Photo Effects, and Decoration

Labnique 25 mm Glass Cube Prism, RGB Dispersion Prism, X-Cube, Dichroic Cube with Hinged Gift Box, for Teaching of Optics, Photo Effects, and Decoration

Amlong Crystal 6 inch Optical Glass Triangular Prism for Teaching Light Spectrum Physics and Photo Photography Prism, 150mm

Physics Optical Experiment Set Multifunction Reflector Refraction Triangular Prism Convex Lens Concave Mirror Dial Linear Light Source Teaching Demonstration Equipment for Teacher Student Education