Extruded aluminum decking and welded aluminum frame rails4' Stand up aluminum Ramp2 x two Tube aluminum Fixed Rail kitModel U6.5x12R-AOverallLength 16'3"Width 102"Deck Height 17"Suspension Torsion Ride Axle Single 3500# IdlerTires 205/75R15Wheels 15" Aluminum Spoke wheels3500# CL2 Straight Coupler / 2" BallHitch Height to Top of Ball 14"12 V Power Connection 4-Way FlatSafety Chains/ Spring Hooks (2) 5000#