Extended length shaft fits Toyota Tundra, Ford F-150/F-250/F-350, GMC/Chevy 2500/3500 and Dodge trucks with heavy duty tow packages. Usable length of receiver pin is 3-1/2". Stainless Steel Barbell lock, fits 5/8" receiver openings. Push to Lock locking mechansim - push lock body onto pin firmly and remove key. Class III/IV; 10,000lb. Load rating. Swivel Head design for easy access. Weather Tough seal protects lock mechanism. K1 Key Blank.