Bike Chainring Lock Ring Removal Installer Tool for Shimano M7100 M8100 M9100
Included: 1 X Bike Chainring Lock Ring Tool. Size: 46 46 26mm (tool), 220 64 3mm (wrench). Weight: about 41g (tool), about 68g (wrench). If item is defective after 3 months, you can still send it back to us.