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Secure your trailer with the Coupler Lock Bulldog Lock Type from California Immobilizer. Designed to fit both 2 and 2 x 5/16 couplers, this lock ensures a snug fit on any trailer. Its solid steel construction is durable and long-lasting, while the powder-coated yellow finish provides visibility in low light conditions. The simple, fast installation process makes it easy to get your trailer secure in no time. This versatile lock is perfect for applications such as RVs, campers, boats, and more! So whether you're looking to protect your belongings or deter theft, the Coupler Lock Bulldog Lock Type from California Immobilizer has you covered.