Vktech 2 Inch 2'' Optical Glass Triple Triangular Prism Refractor Physics Experiment
100% Brand new and high qualityTriangular prisms are used to disperse light, that is to break light up into its spectral components(the colors of the rainbow).Show your kids a rainbowWith a decent gift box,it is a good present for friendsSide Length:Approx. 3 cmPrism Length:Approx. 5cmMaterial: optical glass, not plasticincludes1x 5cm Optical Glass Triple Triangular Prism