This is a very large , which my daughters wanted because they like to do a couple of backhand springs in a row, and this is big enough for them to do so. My main negative about the manufacture is that it doesn't have as much natural bounce as I think it should. Our smaller 14 foot diameter manufacture allows "easy" jumping. I thought that it may have been something related to our installation, but we verified that we had the longer/oblong part attached where it was supposed to be, and everything was stretched out in the right direction. So it just takes more effort to bounce if you're trying to just enjoy yourself and have fun. But all in all it is a pretty nice manufacture if you want a larger surface area and not pay through the roof!