Introducing the fwe transformer series shimano hollowtech bb wrench designed to be used with shimano hollowtech ii bottom brackets but also work on campagnolo and truativ and fsa gxp the fwe transformer series is has a changeable function to it with 1 handle you can have up too 6 different tools just by changing the head making this system light on space and lighter on the pocket the handle is made from anodized aluminium with a comfortable tpr handle the tool hard is made from steel this