Lock your hitch and trailer with one key. The DeadBolt / CT Johnson Coupler Lock Set comes with one receiver hitch lock and one coupler latch lock packaged together and keyed alike for your convenience. The DeadBolt / CT Johnson Coupler Lock utilizes high-tech materials and state-of-the-art engineering to bring you the ultimate in performance, value, and style. A double chrome plate provides automotive-grade durability and corrosion resistance. All-weather grips on the pin knob allow easier handling in cold, wet, or high-temperature weather. Strong, reversible automotive style key is easy to insert and remove, even with gloves on, and fits on your key ring.• Receiver hitch lock with 5/8" dia. pin fits all 2" x 2" receivers (Class III/IV)• Trailer coupler latch lock has a 1/4" dia. pin and 1/2" opening• Set includes two keys Double chrome plate provides automotive-grade durability & corrosion resistance All-weather grips on pin knob for easier handling in cold, wet weather Hitch lock fits all class III/IV receivers / latch lock has 1/4"" dia. pin & 1/2"" opening | C.T. Johnson DeadBolt / CT Johnson Coupler Lock Set, 2" x 2" Receiver Hitch and 1/2" Latch Span