Bradley 2 Pack River Tube with Linking Heavy Duty Cover Each Cover measures 50" diameter when deflated (43" diameter when inflated) Heavy Duty 1100 denier plastic coated canvas top, 1000 denier micro mesh bottom lets water pass through while providing superior protection against abrasion by rocks, tree branches, and other debris Set includes two tubes and one 5" aluminum quick link. MADE IN USA***Not intended for towing behind a motorized vehicle