100% Brand new and high quality;Triangular prisms are used to disperse light, that is to break light up into its spectral components(the colors of the rainbow).;Dimensions: 5.91 in x 1.18 in x 1.02 in (15.0 cm x 3.0 cm x 2.6 cm) Weight: 5.78 oz (164 g);Material: optical glass, not plastic;Show your kids a rainbow

• 5.91 Optical Triple Triangular Glass Physics Prism Spectrum Physics Experiment
• As Shown

5.91 Optical Triple Triangular Glass Physics Prism Spectrum Physics ExperimentYJ-WorldTrade