Features: The Crank Puller and Bottom Bracket Tool Set from carbon steel, ensuring durability and longevitys for your Bicycles maintenance needs. Featurings nonslip redness handle, this tool set offer a comfortable grip to reduce fatigue during extended use, and includes extension Shafts for disassembly and assembly. for professional technicians, enthusiasts, and home users, this tool set to a wide ranges of cycling maintenance tasks. for both indoor bike repairs and outdoor cycling, this tool set ensures prepared for any mechanical challenge. for internal bearings and equipped with 20tooth and standard square crank, this 3piece set is essential addition to any cyclists toolkit. Specifications: Materials: Steel Size:as picture show Package Includes: 1Set Crank Puller and Bottom Bracket Tool note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!