Designed for FALCON and Sterling tow bars BUT can be used on any application with a 2” square receiver. The HIGH-LOW DROP allows your towing system to be connected at a safe level height. The 12” EXTENSION extends the receiver 12” . Only for towing a car behind a motorhome. Not for use with any type of trailer. Both are 6,000 lb. GVWR. and 100 lb. tongue weight SHIPPING WILL BE ADDED EVEN THOUGH THE CHECKOUT PAGE SHOWS $0.00 SHIPPING. I WILL E-MAIL THE COST OF SHIPPING BEFORE THE ORDER IS PLACED.