BLUE OX STANDARD BASE PLATE KIT, STEEL -- With fixed 22 x 24 in. attachment tabs; Includes hardware and instructions; Made of durable steel; Keeps the weight placed on your suspension to a minimum; Designed with hidden reinforcements; Bolts securely to the chassis and spreads towing force equally without undue stress; Integrated into the individual bumper design of the towed vehicle; Requires minor drilling during installation; Not for use with adapter part number BX88152; Not for use with vehicles weighing over 5,000 lbs.