This installation and disassembly tool set is suitable for various Specifications of press in BB central shaft, which can meet the needs of basic installation and disassembly. It is practical and has long service life. Features: Suitable for a variety of press in BB shaft Specifications. (cannot be used for headsets) It can be used for disassembly and installation of bb86, bb30, bb91, bb92, PF30, etc. It can be used for the installation and disassembly of almost all ordinary hollow thread middle shaft bearings and bb86, bb30, bb91, turn bb30 to 24, bb92 and other press BB inner bearings. High strength aluminum alloy, light material, high hardness, no deformation, high stability. Anodizing treatment effectively protects the main body of aluminum alloy, preventing corrosion and rust, and has longer service life. Equipped with a portable suitcase, it is convenient to carry and store. Specifications: Material: aluminium alloy Item weight: 800g/ 1.8lb Package size: 280 * 220 * 50mm / 11.0 * 8.7 * 2.0in Package weight: 974g / 2.1lb Packing List: 1 * Bottom Bracket Tool Set