Diffraction Grating sheet 1,000 lines/mm Linear 1 Foot x 6 Inches Wide

Was delivered rolled tightly and within a plastic sleeve. It was in perfect condition. Once unrolled, it’s the size I ordered and when using it to look at light, the diffraction spreads out on the sheet- not too far for our use though.

The colors are nice. There are creases in it from top to bottom and will mess up your projects. Very small sheet for the price. The product photo makes it look like it’s on a roll and it is really just a small sheet. So disappointed, the search continues.

I don't know what the rest of the reviewers here need a full sheet of this grating for. Yes, it comes wrinkled, but there are plenty of regions (> 3 cm x 3 cm) that are smooth and usable. You don't need a full flat sheet of this stuff to make a spectrometer or demonstrate diffraction. It's also not a shipping issue; it is already wrinkled from the seller.

Came in a fantastic packaging. It was straight and clean. It's so cool I want more. Also the size I got was not misleading for I wanted a small sample size. They have listed the price and sizing clearly.

The film arrived loose in a bubble pack. The film will work for my gecko tape experiments, but it wouldn't work for optics, as it has many dents, scratches, and creases.

I am disappointed that this product has wrinkles. Can not use for intention.

Film is pitted and creased, not usable at all.

Sheet of diffraction grating that I use for outreach. Not a roll, just a sheet.Cuts with ordinary scissors.

Very good gratings for a very good price. The 1K line/mm seems to be even sputterable with from "from the shelf Equipment" from the hardware Store next door. Fast shipping from Israel to Germany.

It came damaged, probably because it’s so thin and small. Very poor value. The image is very misleading. Buyer beware. This is 6”x10” and very thin.

It is a diffraction grating- not much glamour. If you're into that and have a use for it- I found the quality good.

Sehr schneller Versand & Preis/Leustung sind Top.

Eine Minifolie für so viel Geld,da bleibe ich doch bei der Kristallbrechung! Außerdem kam der Artikel viel zu spät an,das hat ja ewig gedauert!Nie wieder!