Features: Please check the compatibility of this tool before purchase. do not purchase if your bottom bracket is not a 16notch type or is not in 44mm 40.5mm or 39mm diameter. Quality bicycles spanner,bike bottom bracket wrench is carbon steel. long hand, comfortable grip, energy saving, convenient bicycles bottom bracket cup.installation and removal. suitable for heavy duty workshop, high strength and durability. Suitable for bb9000, bbr60, m8000,also fits disc brake rotor lockrings with 16 external notches. Portable,it is designed with compacts overall structure, making it portable. Flexible,it is long enough to give you adequate leverage for installing and removing bottom bracket with the force you needs. Specifications: Material:Stainless Steel Package Includes: 1 Piece Bicycle Bottom Bracket Wrench note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item.