Secure your valuable investments with the Lrichy Heavy-Duty Trailer Lock, the ultimate dual-purpose security solution designed for owners of RVs, boats, and cargo trailers featuring a 2-5/16” coupler. This robust lock delivers unparalleled protection by simultaneously locking both your trailer coupler and safety chains with a single, effortless action—effectively doubling your defense against theft and giving you complete peace of mind whether your trailer is parked at home, on the road, or at a storage facility. Built to endure the toughest conditions, its core is constructed from hardened carbon steel for extreme strength and impact resistance, while the durable rust-proof powder coating shields against rain, snow, and daily wear. At its heart lies a high-security, hidden-shackle puck lock with a recessed, hardened solid steel shackle and a pick-resistant 7-pin brass cylinder, offering maximum theft deterrence for your trailer and high-value assets. Installation and removal are quick and tool-free thanks to the two included keys, ensuring reliable and convenient use every time. Backed by our commitment to your satisfaction, this lock comes with a 2-year warranty and a hassle-free after-sales service, including free exchanges or refunds for any quality issues—simply contact us via Amazon.