With its compact size, it is easy to install. BBT-1 is used for 9.5mm square torque wrench, and BBT-2 is used for 10mm hex wrench.This is an excellent tool for installing the bottom bracket cup.Made of aluminum alloy material, it is durable.The width of the product is 5cm, and the thickness is 2.5cm.It is suitable for ZTTO BB91/BB109/BB30SH/PF30SH/BB86-30/BB30-30, for SM-BBR60/SM-BB52, for SM-BB93/BB9000/BB9100, for SR-DUB series, for F-mega BSA30 and for MEGA BB386.Item Name: Bottom Bracket ToolMaterial: Aluminum AlloyNotes:Due to the light and screen setting difference, the product's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bottom Bracket Tool