Use a Tractor Supply Lunette Eye Lock to keep your trailer secure and prevent theft. This lock boasts a strong 2 pc. design complete with a powder-coat finish that protects against rust and wear and tear. The bright yellow color keeps the lock highly visible to both you and thieves, providing additional peace of mind. This lunette ring lock can be used with all 2-1/2 in. diameter to 3 in. diameter lunette rings and is backed by a 1-year limited warranty. Looking for more trailer couplers and accessories? Check out Tractor Supply's Towing Program for towing parts that meet your needs today.