These Kyosho factory replacement hinge pins are sized 3x64mm and designed for the Ultima platform. Sold as a pair, they serve as suspension pivot shafts in the vehicle's hinge pin system. Having the correct length and diameter is critical for proper suspension geometry, making these a precise drop-in replacement when originals wear or bend. Features: 3x64mm shaft dimensions Metal construction Sold as a pair Designed for Kyosho Ultima 7/7/26 cs