"Haul a power wheelchair or mobility scooter easily and safely with the deluxe SC500-HA hitch-mounted carrier from Silver Spring. The scooter hitch carrier fits a 2"" Class III or IV receiver to securely transport up to 500 lbs using the vehicle's hitch. Each carrier includes a rise-drop adapter to adjust the hitch receiver height for added or limited clearance, raising up to 4.5"" high or lowering by 3.5"" to work with vehicle height."