bROK 2" Ball Socket x 2-1/2" Channel 3,500lb Trailer Coupler. Provides years of reliable service connecting your trailer to your towing hitch ball with its zinc plated stamped steel construction. Its bolt through design provides easy assembly to your trailer and the quick release handle has adjustable tensioner for optimal ball security. Quick release locking handle secures coupler to hitch ball. Locking handle adjusts to optimize ball locking. Handle accommodates common coupler locks. Galvanized zinc plating for corrosion protection.