These Yokomo factory replacement rod end balls are sized for the Super Dog Fighter platform and come in a set of four. They serve as pivot points in the suspension linkage, allowing smooth articulation where tie rods and other links connect to the chassis or uprights. Having a fresh set on hand helps maintain precise steering and suspension geometry after wear or damage. Features: Set of four rod end balls Size S designation for correct fitment Designed for the Yokomo Super Dog Fighter 7/7/26 cs