Adjustable Wheel ChockCaracteristicas: Fits a large variety of wheel widths and diameters Adjusts from scooters to cruisers with 15" to 21" wheels Multi fit with an adjustable wheel ramp and backstop Accepts tire widths from 90mm to 200mm Can be used for the front or rear wheel Bolts to trailer or transport vehicle's floor for a semi permanent installation Narrow 8" chassis allows fitment on "rail" type trailers Four anchor bolts and all hardware included for mounting