ア 4 Perfect for my small room. The height and width can be adjustable. So I can make the base bigger and wider to make it more stable for my inverts, and I can make it smaller if I just want to do some stretching but still have space to move around. It does wobble a bit but not to the point where I feel like I'm going to fall down.I am using this with both aerial hammock and tissue (even though this wasn't advertised as a frame for tissue) and can handle my small petite frame just nicely. Always remember to stay in the center to lessen the wobble especially when you're on top.Just one complaint though. The metal parts came with some scratches. But I think it's because from shipping and they all still fit perfectly anyway so it's fine.Also, prepare a wrench for the bolts and nuts.