HDCRYSTALGIFTS 25mm Optical Glass X-Cube Prism RGB Dispersion Prism Physics and Decoration Light Spectrum Educational Model Photography Props

This thing is way more beautiful than it shows in the pics! Do not expect a traditional pure prism, this is not that. Each facet has filters that filter out and reflect a specific wavelength/color of light. Sometimes you can witness TIR or Total Internal Reflection too if you have the angle right, which is super cool to me as an optics nerd (Schmidt-Pechan vs Abbe Koenig prisms in binoculars, telescopes, etc) Its just a really pretty trinket, but not a traditional "rainbow" prism so dont expect that. I would buy again, I got the 25mm cube, thinking about getting the polyhedron now. It is so beautiful in sunlight and fun to play with different colors of lasers. But be careful in sunlight or with lasers! Wear eye protection! Some reflections can catch you off guard and are not necessarily what you would expect! Be careful.But its beautiful and packaged nicely.Only room for improvement would be if it came in a small velvet/microfiber sack or with a cloth to keep fingerprints off. Or a 3 pronged stand on which to hold it up, off centered.So cool to watch it in the light and turn it and see from different angles.

This hangs in a window that receives bright light in the afternoon. The pretty colors and lights that reflect in the room are fascinating to my two kitties. Sometimes I twirl it for them creating an exciting lightshow. Watching them playing with the lights entertains me too : ) : ) : )

Fairly nice but it doesn't do as much as I hoped. If you get it in sunshine it does ok.

Others like this just have a membrane on the faces which peel off overtime. This one it's actually the coloring of the glass/is atomically formed to the surface?

The plush packaging led to disappointing content. Quite small, with vari@bly colored sides, not a clear refractive prism as I expected. Now it’s just sitting in a drawer.

The media could not be loaded. I love these objects that manipulate light waves into many colors both from a scientific view and for just the magical wonder that it elicits. It is cheery to have these on my desk.

You can get some very impressive displays of color with a strong LED flashlight.