Ball-and-clamp locking mechanism secures trailer ball couplers measuring 1-7/8", 2", or 2-5/16" diameter—covering the vast majority of RV and boat trailer hitches on North American roads. One-half-inch pin passes through the clamp and ball shank to prevent coupler lift-off during towing. Black powder-coated steel resists rust and corrosion, and fully universal design fits any compatible coupler without additional adapters or modifications. Single unit per package.

• Fits 1-7/8", 2", 2-5/16" ball couplers
• 1/2" pin size
• Ball and clamp design
• Fully universal compatibility
• Black powder-coated steel