Skywalker trampoline products are thoroughly tested for safety and durability and are found to meet or exceed all standards put forth by the American Society for testing and materials. Safety is our #1 priority and our patented no-gap enclosure design eliminates dangerous gaps between the enclosure net and the jumping surface. By attaching the net at each spring, kids are safe from hazardous pinch points and openings. It stands behind our quality guarantee, with a warranty that exceeds those of top competitors. The trampoline frame features a 3- year limited warranty, all other materials are covered by a 1- year limited warranty. The frames feature reinforced t-sockets at the leg and enclosure joint, increasing frame stability and preventing structural twisting. The T-sockets are made of rust-resistant galvanized steel, extending the life of your trampoline. It is 72 tightly-coiled springs, 5.5″ long are located around the outside of the enclosed net for added safety. Each spring is made of steel and features a dual zipper and latch clip closure system to keep kids inside the enclosure system while jumping. This enclosure system features upright foam-padded poles for added stability. Each pole is angled at the top to keep the enclosure net away from the poles for added safety while jumping. Each pole is topped with a pole cap for secure net attachment.