The R3/R6 Ball Kit provides a 2-inch ball that is compatible with both the R3 and R6 hitches. It includes (1) 2-inch hitch ball, (1) spacer (to be used on the R3), (1) lock washer and (1) nut. The hitch ball is made of steel and has a tow rating of 8, 000 lb. Features a 7. 5-inch length shank with a 1-1/4-inch diameter.