Diffraction Grating Glasses - Linear 1000 line/mm

Great product and company

Rainbow Symphony is a great company to work with. Great customer service, easy to work with, great ricing and products. I would recommend Rainbow Symphony to anyone.

A veritable symphony of rainbows!

These glasses are super fun and were the perfect "schwag bag" item for our demo on the chemical and physical origins of color in nature. I particularly appreciated the excellent customer service as well! Thanks so much!

"Grate" glasses!

Good quality glasses - arrived quickly