This spline bottom bracket tool is designed for efficient maintenance and repair of square hole bottom brackets. Crafted from sturdy metal, it ensures longevity and reliability during use. Ideal for both professional bike mechanics and cycling enthusiasts, this tool simplifies the process of disassembling and assembling bottom brackets, making bike maintenance more accessible and simple. Features -Color:Black -Material:Carbon steel -Size:3.50X3.00X3.00cm/1.38X1.18X1.18in -Inner Diameter: 23.6 mm -Bottom Diameter: 35.6 mm -Convenient repair: the splined bottom bracket tool allows for easy maintenance and repair of bottom brackets, making it an essential tool for any bike enthusiast -Sturdy material: made from sturdy, sturdy materials, this tool ensures performance and reliability, even under heavy use -Versatile design: suitable for various types of bottom brackets, this tool offers versatility and convenience for users needing to perform different maintenance tasks -Easy operation: designed for simplicity, this tool can be easily used by individuals without professional knowledge, making bike maintenance accessible to everyone -User-friendly: the ergonomic design ensures comfortable handling, making it easy to use for extended periods without causing hand fatigue Package list: 1 x bottom bracket tool