1. Material: steel 2. Purpose: can easily remove and install bicycle gear set 3. High precision and flywheel locking ring tight connection, to ensure the firmness of the disassembly, do not damage the flywheel 4. With a center guide bar design, can avoid the use of bias slippery gear problem 5. Can match the size of most bicycle locking disk to ensure the stability and safety of dismantling and installation 6. The tool is compact and easy to carry, can be installed in the bike repair bag or backpack, providing convenience for outdoor riding 7. Size: about 62.5 x 27mm 8. Weight: about 67.8g/pc
