The Hitch adapter used for reduce the size of hitch receiver tube from 2 1/2” to 2”, Problem solving for those Class V pickup truck hitch receiver to fit Class III/IV towing ball mount, bike rack, cargo carrier. | With the unique lip design can quick locate your sleeve into the 2.5” tube without slip inside the tube. | Universal 5/8 inch hole opening for Class V hitch pin kit or lock( not included) and up to approx 3 inch from pin hole centre to sleeve flange end for the clearance | Heavy duty steel construction and towing capacity limited to the hitch, Black powder coated for corrosion resistance. | 5/8" Hitch pin and clip was inclueded