The TowSmartA(R) High-visibility Universal Coupler Lock protects your boats, trailers, campers and other valuable assets from theft. The high-visibility red finish acts as a deterrent, while the coupler itself is extremely durable and resistant to picking and prying. The Coupler Lock is designed to fit 1 7/8", 2", and 2 5/16" couplers and provides multiple locking positions. Simply slide the ball into the coupler, connect the shackle, and use the included key to lock into place. Designed to fit 1 7/8", 2", and 2 5/16" couplers Provides multiple locking positions Coupler lock is resistant to picking and prying Includes 2 keys Heavy-duty, corrosion-resistant finish withstands extreme weather Easy to install High-visibility red finish acts as a deterrent Order today!