4in 100mm Optical Glass Equilateral Prism Teaching Light Spectrum TOP USA SELLER
Use this equilateral prism to split a beam of light into its spectral components(the colors of the rainbow. Side Length: 1.10 inch / 30mm Prism Length: 4 inch / 100mm Material: optic glass, not plastic Not for children under 3 yrs. SHOW YOUR KIDS A RAINBOW Best Value Buy ! TOP USA SELLER Visit Our Huge Selection of Crystal Ball Store