HEAVY DUTY TOW BALL COUPLER LOCK – METOWARE Universal Hitch Lock is a newly upgraded trailer coupler lock with all metal construction. The surface of lock body is frosted, non-slip, Wear-Resistant, and Rust-Proof. UNIVERSAL COMPATIBILITY – This universal trailer hitch security adjustable lock fits 1-7/8”,2”,2-5/16” couplers and ratchet is adjustable with 11 locking positions. EASY TO USE – Metoware trailer lock set Ratchet design is adjustable with 11 locking positions. It is easy and quick for you to install and remove. SAFETY & HIGH QUALITY – The core of the coupler lock is made of premium zinc alloy tubular and combines with the last anti-theft technology. The new design of the lock core makes it lock more secure. GUARANTEE: When you have any questions and suggestions about our products in the process of use, we will listen to your questions and solve your problems quickly. All problems will be solved within 24 hours, please rest assured that our after-sales service!