Featuring top-end safety, unmatched value, and the power of Leaf Spring bouncing, the Thunder offers all of Vuly’s favorite designs in one incredible package. The Thunder concrentrates on safety and performance with a durable polyethylene enclosure and Leaf Springs technology that eliminates the need for safety pads. The durable, ultra-fine netting features easy, self-closing access, and allows the bouncer to collide with the wall while remaining safe. The UV-resistance and UV-protective netting is safe for fingers and toes and the poles are kept on the outside of the enclosure instead of dangerously on the inside like ordinary trampolines. Vuly’s dual ring frame and poles are double-galvanized for weather and rust resistance. The Leaf Springs on the Thunder create a perfectly upright bounce every time that doesn’t twist and strain knees making it always safe to land on. There’s not a single trampoline in the world without coil springs that can match the Thunder’s certified weight capacity of 330 pounds. Available in small, medium, large, and XL, the Thunder is the dream trampoline for every family!