Product Description: Robust and Durable Design: Made from high-quality 6061 aluminum alloy with T6 heat treatment, this multifunctional wrench offers exceptional strength and superior durability, ideal for intensive use by demanding cyclists. Optimized Ergonomics: Its carefully designed length provides optimal leverage, facilitating the removal and installation of bottom brackets without excessive effort, while ensuring a comfortable and secure grip. Wide Compatibility: This tool is designed to fit a wide range of systems, including Shimano models (BB51, BB5700, BB70, BB80, XTR, DURA-ACE, SLX, XT, 105, ULTEGRA), as well as Hope, SRAM, Truvativ GXP, Race Face X-type, and PRWHEEL for BSA standards. Practical Use: The distinctive red ends allow for easy removal of the plastic caps at the base of the cranks, providing quick and precise access to the bottom bracket for maintenance or replacement. This product is sold by xiaosong on behalf of a third-party seller; it is a compatible product. None of the products offered in this store come with two batteries; they are powered by a single battery. Note: 1. Due to variations in lighting and screen settings, the product color may differ slightly from the images shown. 2. Please allow a measurement error of 1-3 cm due to manual measurement. 3. Please check that the size is suitable before purchasing. Thank you for your understanding!