ToolUSA 4.5″ X 2.5″ Optical Glass Rectangular Prism For Educational Or Photography Use, To Refract Light: PP-06260

Amazon.com Price: $14.09 (as of 03/01/2020 03:18 PST- Details)

Made Of Clear Optical Glass
4.5″ X 2.5″ X 3/4″
Prism Breaks White Light Into A Spectrum Of Colors To Demonstrate Refraction And Dispersion