Vuly, Australia's #1 Outdoor Play Equipment. Based in Brisbane Australia, Vuly has been at the global forefront of innovative engineering for trampolines, swing sets, monkey bars, basketball hoops, kids bikes and many other outdoor play products.Thunder features Vuly's signature Leaf Spring technology, which offers a premium bounce without compromising on safety.Experience lighter Leaf Springs that are pre-curved and rivet-less for a more robust, higher bounce. Protect your family, with a stronger polyethylene net enclosure that's unlike other trampolines, is thoroughly 'wet-tested' to verify superior UV performance in real weather conditions. Play on a sturdy dual-ring steel frame with premium finish. It's galvanised inside and out to defend against rust and last in the Australian climate. Thunder trampoline is made super strong and safe, and tested right here in Australia.