This Kyosho factory replacement ball rod ends set is designed for the Ultima buggy platform and uses a 4.8mm ball size. The set provides all the rod ends needed to restore or rebuild your suspension and steering linkages. These plastic rod ends are a direct-fit replacement to maintain proper geometry and control feel. Features: 4.8mm ball size Designed for the Kyosho Ultima buggy Full set for suspension and steering linkage replacement 7/7/26 cs