They're brass screens...
I ordered these from CT Power Tools and am vary happy. I have a medical card here in Michigan and go through a lot of screens for my vaporizer/s, bong's, and bowls all are various sizes so I went with the larger size as it's a lot easier to take away material then add.. (cutting these to size is effortless with a good set of small scissors) The first thing I do with anything like this that has a quantity I count to make sure I get want I paid for and let me tell you it can be a pain with 500+ things but it's worth it.. So I counted these up and Had 105.. Five extra! Fantastic. As far as the quality, I've hitten them with my 'psycho' torch that usually devastates screens and these held up really well.. other than that they are brass screens... Pretty hard to screw up. Package came right on time and over all am quite happy and will be back to get a few hundred more!
Rating: 5 stars