Tow Ready's exclusive J-Pin ® ready receiver design allows for the most confident and secure hookup in today's towing market by compressing the Hitch mounted accessory against the inner side wall of the Hitch receiver tube. Once attached, the Hitch and towing components seem virtually welded together. More than just a Hitch pin, J-Pin ® quickly and confidently secures ball mounts and other Hitch mounted accessories, eliminating the sway and rattle caused by necessary part clearance issues.