Zinc Coated Trailer Hitch Tightener Clamp Heavy Duty Anti Rattle Stabilizer Compatible with 1.25in 2 Inch Hitches Features： 1、Secure Hitching: Designed for 2in trailer hitches ensures stable and reliable connection, preventing loosening or detachment during towing, offering a safer towing experience. 2、Premium Material: Made of carbon steel, zinc material with strong wear resistance, ensuring long lasting durability and providing lasting guard for your trailer equipment. 3、Enhanced Experience: This hitch tightener not only enhances the safety and stability of your trailer, but also allows you to enjoy worry free towing, making your towing experience more secure and comfortable. 4、High Compatibility: Compatible with most hitches classes I, II, III, and IV locking 1.25in and 2in hitches. Suitable for trailer truck SUV sedan RV camper van bike rack and minivan. 5、Easy Installation: Simple to install and use, provides added security and stability for your trailer hitch. Perfect accessory for a seamless towing experience. Specification： Item Type: Trailer Hitch Tightener Material: Carbon Steel, Zinc Surface Treatment: Zinc plated and powder coated Compatibility: Most hitches classes I, II, III, and IV (1, 2, 3 and 4) locking 1.25 inches and 2 inches hitches. Fitment: For Trailer, Truck, SUV, Sedan, RV, Camper, Van, Bike Rack, and Minivan. Package List： 1 x U Bolt 1 x Steel Plate 2 x Fastening Ring 4 x Nut