Review on 🔒 Secure Your Trailer with the Master Lock Stainless Steel Coupler Lock, 2-5/16 in. Coupler, 3784DAT by Matthew Aiono

East in use. But the safety bolt for holding the coupling bolt stopped working after just a few uses. You can no longer snatch the key. We tried Graphite non-agile. The mechanism is frozen. On an overland trip so can't return it now. And needs to be replaced. upset. The clutch lock for use when unhitched is good and works well. At least this key works fine. Just disappointed. Expected a longer lifespan from this brand.