Convert-A-Ball 3-Ball Set - 1 7/8, 2 and 2 5/16 inch Balls With Stem Cover And Storage Case Includes 1-7/8, 2 and 2-5/16 inch balls - Nickel plated finish 10,000 lb gross trailer weight rating 1" shank diameter - 2" shank length Made in USA Read product description below for more detailed information