These Schumacher Racing Products outer wishbone ball studs are a factory replacement for the Mi9 platform and are also compatible with the Mi10 Touring. Each ball stud features a threaded post and a hollow-socket ball head typical of precision RC suspension linkage. The package contains 4 metal ball studs. Features: Sold in a pack of 4 Metal construction Hollow hex-socket ball head Threaded post for secure wishbone mounting 7/7/26 cs