Shimano PRO Chain Tool 9/10/11/12 SpeedThe Shimano PRO Chain Tool 9/10/11/12 Speed is engineered with an ergonomically comfortable handle. It is compatible with road, gravel, mountain, and E-bike chains that are 9, 10, 11, and 12 speeds. There is an indicator Graphic to make sure the chain is compatible. Allows removal of chain links.022255110389