5cm Optical Glass Triangular Prism – Triple Triangle, Light Spectrum Physics Teaching Tool

This 5cm triangular prism is made from optical glass and works great for basic light experiments.

Hold it up to a window or a flashlight and you'll get a clean rainbow spectrum on the other side.

Great for teachers, students, or anyone who just thinks refraction is cool.

No brand, no frills—just a solid little prism that does what it's supposed to do.

Unbranded, but the glass is clear and the angles are precise.