Quiet Hitch stops sway and wander before it begins by eliminating any free play between the receiver and the tow bar (or bike rack, ball mount or whatever you insert) for a solid, seamless connection. Consistent pressure keeps your towing combination tracking straight through curves, crosswinds and sudden maneuvers - all with considerably less effort on your part. Quiet Hitch also reduces tire wear, as well as wear and tear on the hitch and the receiver, by eliminating free play. Especially effective on towing combinations with multiple hitch extensions; also reduces noisy rattle caused by bike racks or hitch accessories. All three Quiet Hitches bolt on in seconds. The receiver must have a ring or collar around it for a Quiet Hitch to attach.