HIGHLY VISIBLE: Bright yellow wheel clamp boot tire lock with soft PVC coated arms protect wheel finish. HIGH SECURITY: Trailer wheel locks has strong steel construction with full welding. The lock position has waterproof cap to prevent dirt dust and rust.2 Packs and 4 keys alike. EASY INSTALLATION: Put trailer boot lock onto the wheel, push & lock. MAX 10″ WIDTH TIRE: Car wheel lock for Trailers Caravan boats ATV’s Motorcycles campers construction equipment. GREAT AFTERMARKET SERVICE: We will give you the best solution within 1 business days if any problem. Feel free to contact us via amazon message. 1 Year Mechanical Warranty.