Topeak tool monster with chaintoolthis topeak tool monster with chaintool covers twenty two practical functions complete with a high quality chain tool for single and multi speed chains up to 12 speed including campagnolo 11 speed hollow pin chains unique articulating two piece design for added leverage and ease of use and storage featurestool material stainless steelallen bits 1523456 2 pcs8 2pcs mmscrewdriver 2 phillipstorx bits t10t15box wrenches 8 2pcs9mmopen wrench