Review on Pawfly 20 Piece Aquarium Suction Airline by Maria Williams

I've had these for a year and a half. So far they have been a 5 star product, good price and good product. However, with all the tanks I had, the plastic has become extremely hard and no longer sticks to the glass. So I would classify it as an unusable product. I took out the rest that haven't been used and they're still soft so I was able to replace them, but if they last another year I think it would make more sense. next time spend a little more money on a plastic product that stays soft longer.