The 13 feet x 13 feet Square Trampoline Pro from JumpKing is a complete trampoline and enclosure system. JumpKing's Trampoline Pro series comes with an integrated safety net enclosure. The enclosure netting is fully supported by a horizontal shock-corded rod, which creates a secure and impressive jumping arena. The JumpKing Rectangular trampoline is an innovation in outdoor trampoline design. It uses a patent pending spring arrangement to provide the best bounce in the industry. This product is ideal for customers who are looking for the best rectangular trampoline on the market.