A 7.3-ft frame with the enclosure net mounted outside the springs rather than inside them, which hands the full 65.5 by 62 in surface back to the jumper instead of fencing off the rim. Thirty-six strong metal springs sit under a seamless pad whose waterproof surface wipes clean after a muddy afternoon. The galvanized steel tube frame rides on a widened curved base so it resists tipping when a child lands near the edge, and the 56-in net closes with an L-shaped double-sided zipper and a buckle. The mat sits 17 in off the ground and the 150-lb limit suits ages 3 and up.