Auto Power Wheelchair Carrier 350 with Hold Down Arm is a super-strong external hitch-mounted carrier that will give you years of dependable operation. \"Auto\" means that the carrier\'s platform automatically folds up when not in use. \"Power Wheelchair\" means that this carrier is designed to transport full-sized powered wheel chairs safely on the outside of your vehicle. \"350\" means that it can lift and transport up to 350 pounds. Finally, \"Hold Down Arm\" refers to the hold down arm that replaces the usual strap system on this model. This makes the carrier even easier to use. The Auto Power Chair Carrier 350 with Hold Down Arm can be used with Class II or larger trailer hitches. Please note that the weight of your power chair, plus the weight of the wheelchair carrier, must not exceed your vehicle\'s hitch rating. The carrier\'s lifting and carrying capacity is 350 pounds, including the 105-pound weight of the carrier itself. You have 245 pounds of additional weight to cover the weight of your wheelchair.