Crtynell Adjustable Trailer Hitch Ball Mount Complete Trailer Arm Equipment: Integral ball head for 2" balls and 2-5/16" balls 2 locking bolts and 2 keys 8 inch Drop/Rise Easy to install, easy to adjust height, powerful towing capacity Flexible Receiver Our product is made for all 2"×2"receivers. Features two holes for highly flexible adjustments and customization. Adjustable Trailer Hitches These adjustable ball stands allow for incremental height adjustment, providing horizontal traction regardless of what you are towing or the direction you are heading. Integrated Ball Head Our fittings feature a one piece ball head that doesn't need a ball seat and won't fall out, greatly improving safety.