Vertical Anti-Wobble Device for 1 1/4" Drawbars

This Vertical Anti-wobble device fits bike racks with 1 1/4" drawbars.  It slides over the drawbar before you insert it into the hitch receiver.  Tighten the screw from the underside to press against the underside of the hitch receiver, removing bounce in your bike rack or other hitch-mounted unit.