Quick Products' two-inch Receiver Adapter for RV Bumpers fits RV bumpers from four-inch, 4.5-inch with a two-inch x two-inch receiver. This adapter bolts easily into place and supports up to 200 pounds. Perfect for cargo carriers and bike racks. Solid steel construction. Note: This product is not rated for towing. Only use this product for hitch-mounted, RV-approved accessories. Designed for use on continuous welded steel bumpers only, do not use on bumpers with decorative aluminum covers.