Our Challenger 4 set holds 880 lbs. It includes two inflatable cushions, welded oar locks (two on each side), oar holders (four on each side), all-around grab line, grab handle on bow, and motor mount fittings. This boat is constructed of three air chambers, including an inner auxiliary chamber which is able to keep the boat and passengers afloat should the main chamber lose air. Approximate inflated size: 138 inches x 57 inches x 19 inches. Holds four people. U.S. Coast Guard I.D. and TUV approved.