JumpSport AlleyOOP PowerBounce 10&rsquo;x17&rsquo; Trampoline with Enclosure | 2 Layers of High Performance Black Springs | 50+ Patent & Safety Innovations | Lifetime Frame Warranty Go Higher! 92 Primary Black High Performance Springs + 72 Black PowerSprings = a trampoline with state-of-the-art, adjustable, Patented PowerBounce technology that will improve both shock absorption and bounce performance. New, advanced safety net design with built-in Fail-Safe backup systems. Engineered with high-quality materials  designed to last Patented Unforgettable overlapping doorway eliminates fall-outs for parental peace of mind. Includes our strongest, easy-to-install, safety net system  rated to 295 lbs. Exceeds ASTM Impact Performance Test standards. Convenient built-in rest zones. Kids can finally rest and wait their turn safely on our reinforced Extra-Thick Pad Covering. Lifetime Warranty!* Engineered with 50+ safety innovations & patents. Family owned by the inventory of the safety net.