Review on 🔬 Enhance Physics Education with Linear Polarization A5 Sheet Polarizer - Optimize Learning with this Polarized Filter for Optical Experiments by Robert Moloney

I'm not sure what happened to my particular sheet of this film but based on the reviews I'm hoping it's not normal to use it in to maintain this condition. Where it's not all scratched it's what I expected and works well. But as you can see in the photo where I'm holding it up to a white background, it's VERY scratched and I haven't even taken it out of its protective case and removed the protective film. This is a really cool product but I am still very disappointed that I spent money on this product which arrived so damaged. Sigh. Ah, lesson learned. :-(