Bicycle Maintenance Tool Set Wrench + 20 Teeth + 35 Grams + Interceptor Three-in-one combination tool: 1. Environmentally friendly plastic, good slip resistance 2. One-piece milling pin forming, high strength 3. Function: installremove the hollow crankshaft; installremove the dead flywheel locking ring; fix the flywheel for easy removal of the flywheel 4. Material: carbon steel + surface chrome plating 5. Size: length 20cm 6. Weight: about 200g Pull code tool: 1. The ejector rod has an extended and removable square mouth 2. Precise thread, thick head, CNC thread, high coaxiality, precision without deflection, not easy to screw the crank thread, easier to push in and remove the crank 3. The diameter of the head is increased to 9.5mm, which is not easy to be bald and does not hurt the central axis 4. Anti-slip embossing, easy to screw by hand, easy to adjust 5. The occlusal mouth is lengthened, the force area is large, and it is not easy to twist and slip 6. Anti-rust and non-slip surface, no matter how hard it is, it will not slip off, so you can rest assured 7. Material: high strength steel 8. Size: length 8cm, diameter 1.9cm 9. Weight: about 120g Silver chain clipper: 1 Applicable to all kinds of chains, the chain will be better restored to the original precision and smooth rotation after installation 2. Effectively avoid ejection, the ejector needles make concentric and concentric movements 3. Make the thimble accurately align the chain shaft to ensure chain cutting efficiency 4. Using the new quenching and heat treatment technology, the hardness is effectively improved and the service life is prolonged 5. Using automatic thread rolling machine, high precision push thread, accurate push 6. Material: high strength steel 7. Size: 8.2x7x1.1cm 8. Weight: about 120g Spoke wrench 1.8-mouth precision crafted, steel-printed numbers, suitable for common spoke nipples on the market 2. Use the corresponding bayonet to clamp the spoke cap and tur