Heavy Duty Trailer Hitch Locks Fits 2" and 2-5/16" Couplers, Upgraded Anti Theft Trailer Tongue Lock Secure with Coupler and Safety Chain, Trailer Lock for RV Camper Trailer Truck Pickup Boats(Sliver)

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• Versatile Compatibility: The Fanthorn trailer locks are compatible with 2" and 2 5/16" trailer coupler hitches. When the safety chain are wrapped around the upgraded internal sliding, they will significantly reduce slack and difficult to remove after totally installed. Your trailer, pickup, boat and RV will get high security.
• Heavy-Duty Protection: Made of premium durable &steely harden alloy steel, the trailer hitch locks has extremely high strength and toughness, protecting your trailer from theft. With 18,000 pounds load-bearing capacity, the interior is carefully constructed and can hold the ball firmly without deformation.
• Weather-Resistant Trailer Lock: Anti-corrosion and Rust-proof, the trailer coupler lock uses advanced premium surface coating material, ensuring safety from different weather and environment conditions. Whether it is hammered, fired or low temperature, the trailer coupler lock will not fail to work.
• Upgraded Puck Lock: The hitch lock with keys features an upgraded and advanced brass core lack, which is made of anti-corrosive and long-time using material. The automatic pop-up design, you can rotate the key to pull it out after popping up，which greatly improves the efficiency of unlocking.