Opens With Your Car Ignition Key. Gets rid of Additional Keys on Your Ring. Stainless Metal five/eight in. Diameter Shaft. Double Ball Bearing Locking Mechanism. Plate Tumbler Sidebar To Save you Choosing and Bumping. Stainless Metal Lock Shutter To Stay Out Dust And Moisture. Suits Magnificence 3 And 4 And 5 Hitches. Restricted Lifetime Guaranty.