It is made of high-strength chromium-molybdenum steel, quenched and hardened for high hardness. Application: One end is designed for installation and removal of DT planetary ratchet hubs compatible with 240S, 240, 340, 350, 440, 540, and other planetary ratchet finished wheel sets. The other end is used for installation and removal of DT hub EXP ratchet wheels, compatible with DT new EXP upgrade 54T ratchet DT240/180 hubs, as well as older hub models. This two-in-one tool is used with a 22mm open-end wrench or adjustable wrench—tighten clockwise and loosen counterclockwise. Precision CNC turning and polishing create a round, smooth finish that protects the hub and hands. Compact size for easy handling, making it a great bike maintenance tool. Color: silver Material: steel Size: 35x27.5x27.5mm Package Contents: 1 x Rear hub removal tool Note: The package includes only the items listed above. Other products are not included. Note: Lighting effects and monitor settings may cause slight color differences between the image and the actual item. Measurement allows an error of +/- 1-3cm.