Connor Trailer Hitch Lock - 1/2" and 5/8" Stainless Steel Hitch Pin for Class I, II, III Hitches, 1615270 Receiver Lock Sleeved SAVE TIME, AVOID FUMBLING WITH KEYS, BE SAFE  Remove the key right after unlocking to avoid all the key fumbling and hassle! Push-to-lock technology ensures a secure fit everytime - PLEASE PUSH ALL THE WAY IN TO HEAR CLICK AND ENSURE IT'S FULLY LOCKED FITS MOST COMMON HITCH SETUPS  Fits Class I/II 1-1/4" x 1-1/4" & Class III 2" x 2" receivers (1/2" & 5/8" pin) - PLEASE CHECK YOUR HITCH SET UP EASE OF MIND  Tow up to 5,000 GTW without any worries! 2-7/8" usable length - Please check your hitch receiver width, may be small for your set up DEPENDABLE STRENGTH  Patented design engineered to increase durability and strength- Includes 2 keys and an all-weather rubber key slot cap CONSTRUCTED FROM HEAVY DUTY SOLID STAINLESS STEEL FOR SUPERIOR STRENGTH  For replacement keys or rubber cap please visit our website or contact us on Amazon