Rainbow Symphony Pack of 5-1Ft x 6" Diffraction Grating Roll Sheet Double Axis 13,500 l/inch - 5 Separate Sheets

I bought this after it was recommended by an acquaintance. My wife loves rainbows and these Diffraction Grating Sheets can be put in a window so the sunshine creates rainbow light spots in her work studio. These are plastic sheets that stick in your window. Get them wet and use a squeegee or something else to stick it to the window. Now when sunshines through the grid, it will be. defracted into a rainbow.

Glued one to my 3d printer bed to transfer the pattern onto the prints.

I purchased these diffraction films to use as prisms to cast giant rainbows on my wall, they worked perfectly for that purpose!

Used it to make lenses for children's rainbow glasses.

Item came rolled, no finger prints, not crinkled, in perfect condition! Thank u!