It is made of high-strength chromium-molybdenum steel, quenched and hardened for high hardness. Application: One end is suitable for installation and removal of DT planetary ratchet hubs compatible with 240S, 240, 340, 350, 440, 540, and other planetary ratchet wheelsets. The other end is designed for installation and removal of DT hub EXP ratchet wheels, compatible with DT EXP upgrade 54T ratchet DT240/180 hubs, as well as older hub models. Two-in-one tool; use with a 22mm open-end wrench or adjustable wrenchtighten clockwise, loosen counterclockwise. Precision CNC turned and polished for a smooth, rounded finish that protects the hub and hands. Compact size for easy handling; ideal bicycle maintenance tool. Color: silver Material: steel Size: 35x27.5x27.5mm Package Contents: 1 x Rear hub removal tool Note: Package includes only the items listed above. Other products are not included. Note: Lighting effects and display settings may cause slight color variations between the image and the actual item. Measurement error allowed within +/- 1-3cm.