These are Xray factory replacement 6.8mm ball studs with an integrated backstop, featuring an M3x8 threaded shank with a length of 6mm. The backstop collar positions and secures the ball stud consistently in suspension and linkage mounting points. Sold as a set of two, these are a direct fit for the Xray XB8 platform and related models across multiple model years. Keep a supply on hand as ball studs are a common wear and replacement item in competitive 1/8 off-road racing. Features: 6.8mm pivot ball diameter M3x8 threaded shank, 6mm length Integrated backstop for consistent positioning Sold as a set of 2 7/7/26 cs