DESIGN & DETAILS: Square Trampoline Frame constructed with rust-resistant galvanized steel UV-resistant polyethylene enclosed net prevents your kids from falling out while jumping Springs are covered in foam-padding that protects from rough springs and entanglement Patented double welded plates are welded to reinforce the joints so you won't have to worry about bending and breaking Steel W-leg construction provides stability 220 lb. weight capacity UV resistant jumping mat