Amlong Crystal Set of 5 4 inch Optical Glass Equilateral Prism
- Use this triangular prism to split a beam of light into its spectral components (the colors of the rainbow)
- Side Length: 1.38 inch / 35mm, More Than Average Width, Stable Handheld
- Show your kids a rainbow, or have photography fun
- Material: Optic glass, not plastic
- Made in China