3 Position Adjustable Chrome Motorcycle Wheel Chock Stand Truck Trailer Mount Compatibility: Fits wheels that measure 17-21 in diameter and less than 6.5 wide Safety: Mount to floor securely instead of bolting; Use kickstand or strap to bind it Includes: 1 chrome motorcycle chock and mounting hardware Design: Solid, shiny, efficiently uses storage space; Easy for 1 person to mount and drive into Dimensions: Base  15.4 x 10.3; Weighs 13 lb