JumpSport 14' DoubleBounce | AlleyOOP Trampoline with Enclosure | Double the Safety, Double the Fun | 50+ Patent & Safety Innovations | Lifetime Frame Warranty Patented DoubleBounce Technology creates a shock absorption zone with its double mat design. 50% more forgiving than ordinary trampolines. Helps reduce risk with multiple jumpers. 128 Black High Performance springs offer a soft landing with a smooth downward bounce and an exceptional return. New, advanced safety net design with our latest performance enhancements. Engineered with high-quality materials  designed to last a lifetime. Patented Unforgettable overlapping doorway eliminates fall-outs for parental peace of mind. Includes our strongest, easy-to-install, safety net  rated to 295 lbs! Exceeds ASTM Impact Performance Test standards. Lifetime Warranty!* Engineered with 50+ safety innovations & patents. Family owned by the inventory of the safety net.