FOR M35 BOTTOM BRACKETS ONLY. This is NOT the tool for the Praxis M30 BB or our Shimano/SRAM/Campy Conversion BB.⢠As used on Fuji bikes and more⢠Sold as 2pack of M35 BB tool. 3/8" Socket style tool⢠2 tools are needed for correct installation/removal of M35 ConvBB