These Kyosho king pin flanged bushings are a factory replacement part for the Optima 2016 platform. The set includes both the flanged bushings and the mounting screws needed for installation. Flanged bushings seat securely at the king pin location to maintain precise steering geometry and reduce wear at the pivot points. Features: Includes flanged bushings and mounting screws Flanged design for secure seating at king pin location Factory replacement for the Kyosho Optima 2016 7/7/26 cs