This REESE Trailer Hitch Reducer Sleeve adapts a 2-1/2-inch receiver opening to the smaller, more popular 2-inch opening. The hitch receiver adapter is also ideal for adapting accessories with an incorrect shank size such as a bike rack or cargo tray. The durable hitch sleeve features a black powder coat finish to help resist rust and corrosion. Designed to convert a Class 5 trailer hitch opening to a Class 3 & 4, this hitch reducer sports a 5/8-inch hitch pin opening. The REESE Trailer Hitch Reducer Sleeve comes with a limited 1-year warranty.