You are purchasing a New GSRF, Loc-it coupler lock for a 2" 2 5/16 ball coupler. This will fit couplers with a maximum width of 4 3/8" at the ball. This is for stamped couplers only. Will not fit cast or forged couplers. This comes with a puck lock with 2 keys as shown. This is a very secure way of locking the coupler on the trailer so thieves have no way to tow your trailer away. This does not fit Slide Lock Couplers !! This lock comes with Free Shipping to the lower 48 states. A 90 day Factory Warranty included. Made in good old USA. Color may change. If you purchase more than one housing, and you want locks keyed alike, there will be a $10.00 up charge for each lock ordered on top of regular purchase price. Please specify when buying more than one pc. If returned, buyer pays return shipping fees. Please check out our other listings for coupler locks if you have not seen what you want in " See other Items". Note: Coupler must be a total width of 4 3/8" or less to fit housing. No International Shipping Please.