Rainbow Symphony Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 50

Description

🌈 See the spectrum like never before – don’t miss the light show!

Rainbow Symphony Diffraction Grating Rainbow Peepholes feature 13,500 lines per inch double axis holographic lenses, crafted in the USA for premium quality. These reusable 1 11/16" diameter peepholes transform ordinary light into vivid spectral rainbows, making them perfect for educational use, parties, and anyone eager to explore the science of light in a fun, portable format.