TRAILER HITCH LOCK - Patent Pending 5/8" Locking Receiver Pin for Class III IV Hitches - Weatherproof Anti-Theft Lockable Pin with Dust, Mud & Gunk Protection - Used to Tow Truck, Boat, Bike SUPPORT A SMALL FAMILY CO. - Buy From a Father/Son Business in California & Receive a Lifetime Warranty! ANTI-THEFT HITCH PIN - Solid Forged Steel Ensures Protection to Your Trailer & Hitch From Theft COMMON HITCH SIZES - Our Unique Trailer Hitch Lock Fits all Class III & IV Hitches (2" x 2") With Ease. PATENTED DESIGN - Newly PATENTED Weatherproof Slide Cap Protects From Dirt, Mud & Gunk GUARANTEED 5-STAR EXPERIENCE - If you aren't 100% Satisfied With Your Hitch Pin for any Reason, We'll Refund your Money Delivery Estimate: 3-5 Business Days FREE Shipping on Orders Over $75 Rhino USA is a small, family business founded by a father and his two sons from Temecula, CA. Whatever adventure you choose, the Rhino Team is 100% committed to help you blaze your own trail with confidence. NOTE: Not compatible with 5th Generation Toyota 4Runner, 7th Generation LandCruiser, 3rd Generation Tacoma or 2nd Generation & 3rd Generation Tundra Hitches.