It is made of high-strength chromium molybdenum steel, which has been quenched and hardened for high hardness. One end is designed for installation and removal of DT Swiss planetary ratchet hubs compatible with 240S, 240, 340, 350, 440, 540, and other planetary ratchet wheelsets. The other end is used for installation and removal of DT hub EXP ratchet wheels, suitable for DT new EXP upgrade 54T ratchet DT240/180 hubs; not compatible with older hubs. This two-in-one tool is used with a 22mm open-end wrench or adjustable wrench—tighten clockwise and loosen counterclockwise. Precision CNC turned and polished for a smooth, round finish that protects the hub and hands. Compact size for easy handling, ideal for bicycle maintenance. Color: silver. Material: steel. Size: 35 x 27.5 x 27.5 mm. Package includes: 1 x Rear hub removal tool. No other items included. Note: Lighting and display differences may cause slight color variation between the image and actual item. Measurement error allowance is +/- 1 cm.