These SWORKz linkage ball studs measure D5.5mm x L7mm and are factory replacement pivot balls for SWORKz 1/10 2wd buggy platforms. The hex-socket head allows for secure installation and adjustment of suspension linkages. Sold as a set of 4 pieces. Features: D5.5mm ball diameter, L7mm stud length Hex socket head for easy installation Set of 4 pieces For SWORKz 1/10 2wd buggy platforms 7/7/26 cs