4pcs Clear K9 Crystal Triangular Prism for Photo Rainbow Lights Crystal Optical Prisms Glass Physics Teaching Refracted Light Spectrum Students Presents Gift,50mm/2inch

Total quality in product and packaging.

Great for optical experiments, learningju tool for small and big kids

we got plain glass shelves in our bathroom that are a 10x better prism by accident than these thingsidk what theyre made from or if its the weird angles/cut... but it just doesnt really do whats its meant to do...

Used this in my classroom as an experiment using white light to create rainbows. Really easy to use and lots of fun.

These are nice, they come in a nice little box with a little cloth and have the nice factor. They are readily broken though and they don't put off much more of a rainbow in comparison to the class sets. Class sets are much more durable and a lot cheaper.

I bought these as a gift for Our Grandchildren. Then really like to play with them and explain to their friends how these break down white light into different colors. A good science project to explain this and how the sun shines on a rain shower to make a rainbow.

Good glass, bends light strongly, have to learn to use it properly. They came intact.

They will refract light if you get the angle right, but they should have used a more refractive material.