Towever 84332 Trailer Hitch Extension Receiver Tube Extenders, 7" Length 2in trailer hitch extension for class 3 or 4 hitch receiver Fits into 2" hitch receiver and 2" outside, Extends to 7", perfect for hitch mount bike rack to clear spare tire on jeep wrangle Capacity: 5000 lbs GTW / 500 lbs TW , for most bike rack and cargo carrierrs, Hitch tightener( towever 84701) are highly recommeded for tight fit and noise reduce. Black Powder Coat Finished Use 5/8 inches Hitch Pin Kit or Lock