Feature 1The use of pure copper lock core can effectively prevent the lock core from rusting. 2Our product contains the waterproof cover of the lock core, which can effectively prevent the damage of the lock core in rainy days. 3With push-to-lock technology and 1/4-turn lock, make it easy to lock and unlock the hitch lock set. 4Lengthen the wide distance for rear-end conservation. 5Universal compatibility: It is compatible with class III IV hitches, 3\" hitch receiver, big towing truck and car.(Please verify the size of your hitch and get a suitable hitch pin lock) Features: The use of pure copper lock core can effectively prevent the lock core from rusting. Our product contains the waterproof cover of the lock core, which can effectively prevent the damage of the lock core in rainy days. Lengthen the wide distance for rear-end conservation. With push-to-lock technology and 1/4-turn lock, make it easy to lock and unlock the hitch lock set. Universal compatibility: It is compatible with class III IV hitches, 3" hitch receiver, big towing truck and car. (Please verify the size of your hitch and get a suitable hitch pin lock) Specifications: Color: Black Material: Stainless Steel+ Chrome Plated Surface Product Size: 17.5 * 3cm Product Weight: 470g Package Size: 22 * 9.8 * 3cm Package Weight: 483g Package List: 1 * Hitch Locking Pin 2 * Keys Package List1 * Hitch Locking Pin 2 * Keys