"I bought two Avian Select Clear Guards because my cage is 30X18X36. The product is actually quite nice because it's clear and you can see if there are any seeds on it etc. The only problem is that I've only had it for two days and the adhesive has came off of it a couple of times. I understand it's because of the fact that you're putting a circular adhesive on two sides of the plastic guard. But at the same time, the plastic is trying to pull back on itself because of the way it was packaged. The package is rolled up like a tube of wall paper. You just cut the piece you want, wrap it around your cage, and attach it to the other side. I'm still using it since I paid for them but now, alongside with the little sticky things, I've used clear tape. 8) The attached side is towards the back. No one will ever know the difference. It does work better than some of the other seed guards that I've seen out there. Especially since I have two very active finches."