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

It's really cool to put in the sun. Holding it up against your phone camera gets really cool results too.

Very small but beautiful. Wasn’t able to see the light fractions being reflected off the floor or wall because of how small it is but it is exactly as described. One thing to be careful though. It’s very fragile. Don’t drop it on hard flooring because it will be chipped. At least that’s what happened to mine. Might have to get a new one.

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.

Aunque es pequeño, ¡es muy bonito! Lo regalé y a la persona le gustó mucho. Con diferentes luces y movimientos, muestra colores muy padres.

My son loves this crystal. He puts it on his window sill to catch the sunlight and loves watching the rainbow lights appear on his wall. He keeps it in a box with all his precious treasures. I love it too!