The heavy-duty Deluxe RV Bumper Receiver Adapter turns your bare bumper into a 2" receiver, giving you the ability to add a bike rack or storage tote to your RV where you would have not been able to before. This heavy-duty adapter mounts underneath your existing 4" x 4" bumper and its receiver fits standard 2" tubes. 200 lb. tongue weight capacity. NOT intended for towing purposes. Before installation, be aware that RV manufacturers may place load restrictions on their vehicle's bumpers. These load restrictions must be followed to create a safe RVing experience. If you are unaware of your bumper's load restrictions, please consult your manufacturer for information to ensure safe use. Install only on continuous-weld steel bumpers.