Excellent quality. So far about 50 gone through and only 1 had a hole in it. Very stretchy, I have nails and they haven't broken when stuffing or tying. Smells like latex but is said to be biodegradable. We used the hose nozzle that came with it. The tip is slightly larger than balloons, so you can't just pop the balloon on. You actually have to stretch the hole to seat it on the nozzle