The DeadBolt / CT Johnson Coupler Latch Lock helps prevent theft of your boat, horse, cargo, or travel trailer. Lock down the latch on your trailer coupler to prevent thieves from hitching up and driving it off. The DeadBolt / CT Johnson Coupler Latch 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. This weather-resistant lock fits all lever-style couplers with 1/4" pin and 1/2" span. The lock end has a snap-on weather shield. Includes two keys. All-weather grips for easier handling in cold, wet, or high-temperature weather Fits all lever-style couplers with 1/4"" pin & 1/2"" span Includes two keys | C.T. Johnson DeadBolt / CT Johnson Coupler Latch Lock, 1/2" Span