1.2'' Optical Glass RGB Dispersion Prism X-Cube for Physics Teach Rainbow Prism Crystal Cube Prism Photography Props

Of all my prisms, this one is my favorite. Beautiful - so sparkly and so many ranges of colors.

Perfect size to take with you. Definitely worth the money.

If you turn it in front of a light it does cast colored light effects (Somewhat disco ball esque) but it does not cast rainbows. Very nice-looking shelf bling. Nicely packaged in a gift/storage box.

Bought 3 to put on a patio table and reflect the sun. They look great.

This is a small prism and can easily get lost. But when the sun hits it just right it does throw some interesting colors. Not sure how a physics teacher would deal with that since it is so small, and a drop would definitely damage it. I consider it more of a fun prism to play with.

I like to play with it. It's so pretty and the colors as it rolls and refracts is amazing. I'll definitely but it again if I lose or break it.

Quite small. Unfortunately it was scratched on one side. Disappointed.

We love it and bought a 2nd one!