FITS 2 5/16 Standard Trailer Couplers (Puck Lock Included) Having the best coupler locks is not an easy task. We pride ourselves on a glove like fit security product and with that being said this will reduce the percentage of thief's that are capable of breaching our security products. Model 2516 fits most trigger latch and thumb latch couplers Rest assured Proven Industries trailer lock will leave you with simple the best coupler lock on the market. No other trailer coupler locks can secure your safety chains.

• Ultimate Protection Against Theft - Bolt Cutter Proof
• Made in the USA
• Secures your Safety Chains
• Easy Installation - 1/4" All Steel Construction - Black Powder Coat Finish

Ultimate Protection Against Theft - Bolt Cutter ProofProven Locks