Protect your boat at the ramp, in the driveway, or at the motel between walleye, salmon, and bass trips with the Boating Essentials Trailer Coupler Lock, a compact security upgrade that helps keep your trailer where you left it. Heavy-duty construction adds the durability and theft resistance anglers want for everyday trailering, while the screw-type locking mechanism makes it easy to lock and unlock without adding hassle to launch prep or storage. This trailer lock fits all standard trailer couplers and retains the coupler latch for added safety, giving you a practical way to secure your rig during travel stops, off-season storage, or overnight parking. Its lightweight, compact shape also makes it easy to stow in a truck box, boat compartment, or glove box when not in use. Heavy-duty construction helps provide durability and theft resistance Simple screw-type mechanism allows easy locking and unlocking Fits all standard trailer couplers and retains the coupler latch for safety Compact, lightweight design stores easily in your vehicle or boat