Master Lock 2866 DAT can fit 1/2" (13mm) or 5/8" (16mm) receivers. Usable length or receiver pin is 2-3/4" (70mm). Push to Lock® Locking mechanism - push lock body onto pin firmly and remove key. Load rating of 1/2" shank is 3,500lbs and 5/8" shank of 10,000lbs. Weather Tough® seal and water tight cap protects from moisture and dirt. Has 4-pin cylinder for added pick resistance. Brand new on retail card. Retails for $21.70