Dicsounted Missing Parts Only 2 Pivot Balls. This is an optional Tekno RC Aluminum 6.8mm Pivot Ball Set, and is intended for use with the Tekno RC EB48 1/8 electric buggy. These pivot balls are machined from aluminum to help reduce weight, and are used in the lower end of the sway bar links, as well as in the shock rod ends. Package includes 2 pivot balls.