1/2 price on Motorcycle Wheel Chock by Extreme Max model 5001.5759. holds motorcycle tire up to 5.5" wide . Has 6-1/2" clearance x 13-1/2" high. Designed for lighter-duty applications and must be bolted down in a truck bed or trailer or garage floor, Simple bolt-together assembly, four-hole mounting pattern. New and unused in carton. If you had ordered this model from amazon it would have cost $40.