The jumping surface of this 11ft x 11ft square trampoline is equivalent to the jumping surface of a typical 13ft x 13ft trampoline with springs. With no springs around the outer edge of the trampoline, this is perfect if you need to be creative with the space in your garden, without having to compromise on jumping space Springfree trampolines were designed to be different. The unique flexible fibreglass rod design eliminates the need for the springs. The flexibility of the rods; combined with the angled design gives a smooth and controlled bounce, perfect for younger jumpers. There is no need for padding with a Springfree Trampoline. If you bounce to the edge, the SoftEdge™ pad is there to protect you and has been proven to be 30 times more absorbent than the traditional padding. The solid, rigid frame all sits beneath the jump area, so you can rest assured that if you take a tumble, the Springfree FlexiNet™ will be there to catch your fall. The Springfree FlexiNet™ safety enclosure is another unique design and safety feature. Constructed from polypropylene and with an outstanding 10 year warranty, this robust zippered enclosure also has flexible supports to cushion jumpers and prevent falls. These rods ensure that the jumper is directed back to the centre and cannot make contact with the net rods. With a 10 year warranty on all parts of the trampoline, you can be assured of many years of jumping fun. Additional items are also available to increase the fun as your family grows. Ideally this trampoline should be placed on level grass, however, the innovative Springfree design allows this to be placed in gardens with a gradient of 12% or even on hard surfaces, as long as you place rubber matting beneath the legs to protect them from the friction and scratching. A minimum clearance of 17.5ft x 17.5ft. is required to ensure that there is nothing obstructing the enclosure.