Inflatable bouncing mattress is constructed of 2 heavy-duty 17-gauge vinyl cushions for superior bounce. Attached 3-ring, 3-chamber retainer wall keeps kids and balls safely inside. A built-in ledge adds seating and extra play value. Jump-o-lene inflates with a regular beach toy inflating pump or one of our air pumps. Stores compactly when deflated. Drain holes along retainer wall prevent water accumulation. If used as a ball pool, it holds up to 1,500 balls (sold separately). Repair patch included. Two-child, 120-pound capacity. Size: 82" diameter. Overall height from floor is 28-1/2". Colors may vary.