Features: 1.Function: Hook tightener is designed to eliminate hitch noise, wobble, rattle, etc. of cargo carrier, hitch receiver, trailer ball mounts, bike racks, hitch racks, etc. 2.Compatibility: Anti rattle stabilizer is great for 1.25in and 2in hitches, easily installs with Class I, II, III or IV (1, 2, 3 or 4) hitches, not for 2.5in or larger hitch. 3.Premium Material: Trailer hitch tightener ia made of 304 stainless steel material, powder coated treatment, high strength, rustproof, durable in use. 4.Package Contents: The package includes a heavy duty U bolt and thick plate, spring lock washers and flat washers help to tightening in place and secure. 5.Application: Anti rattle hitch tightener can be used for varieties of vehicles, great ideal for hitchs on trucks, suv's, vans, RV's and trailers. Specification: Item Type: Hitch Tightener_x000D_ Material: 304 Stainless Steel_x000D_ Usage: For 1.25in and 2in hitch_x000D_ Application: Trailer, RV, SUV, camper PackageList: 1 x Tensioner Plate 1 x U Bolt 2 x Nut 4 x Gasket