30mm Equilateral Prism Optical Glass Triangular Prism Triple Prism for Rainbow DIY Photography Teaching Props

$25.50

A beam of light bends as it passes through the glass prism, then the prism disperses the light into various colours in the rainbow.
The equilateral prism with three 30mm equal sides.
Surfaces and edges are well polished without burrs.
Crystal clear prism has better light transmittance and refraction effect.
Made of K9 optical glass that has excellent performance.