Model # 72801 Internet # 202328191 Store SKU # 832468 Store SO SKU # Reese Tow power Interlock hitch balls have a patented hex design which allows for a one-wrench tightening system when used with a Reese Interlock ball mount. It makes for installing the hitch ball more efficient and prevents marring of the hitch ball. It is not limited for use with the Interlock ball mount and can be used with any standard ball mounts. California residents: see Proposition 65 information 2000 lb. gross load rating Steel construction 1-7/8 in. ball diameter 3/4 in. shank diameter Assembled Depth (in.) 2.25 in Assembled Height (in.) 6.9 in Assembled Width (in.) 2.6 in Ball diameter (in.) 1.875 Gross load rating (lb.) 2000 Manufacturer Warranty Limited 1 Year Material Steel Product Weight (lb.) 1.95 lb Returnable 90-Day Shank diameter (in.) .75