... , Max user weight 150kg Hevay-duty springs, Specifications of Bouncy bed: Our company manufactures many kinds of trampolines including small and ... GS, EN-71, EN913, ASTM, AS4989 certificatetrampoline includes: 1) 6ft., 8ft., 10ft., 12ft., 13ft., 14ft., 15ft. trampolines 2) Trampoline enclosures ... and stops water from pooling on the surface. The bed attaches to the springs using V rings; these not ...