O'Brien's Rock-It towable sends up to 2 riders rocking across the water. Constructed with 30/24-gauge PVC backrests and full 840-denier nylon cover. Four handles with EVA knuckle guards give you comfortable gripping options. The Rock-It also includes 2 EVA pads and 1 Boston valve for quick inflation/deflation of the tube. 340-lb. weight limit. 60" x 79".