Features: Our Bikes Bottom Bracket Wrenchs providing improvedprecision as well as reduce slipping to ensure easily maintenance to remove and fit your Bikes Bottom Bracket. Make of 4mm thick steel materials, it is wear-resistance, durability, easy to carry, and easy to use. Rubber wrap handle, extended and antislip for comfortable grip. Suitable for enthusiasts, maintenance engineer, and Bikes shop owner who enjoy Cyclings. It can used for Bikes maintenance, assembly, and adjustment of the Bottom Bracket, suitable for outdoor Cyclings, daily use. Specifications: Materials: Chromiums molybdenums steel and Thermoplastics polyurethanes Model: BBR60/BB9000/HollowtechII/Adapt to 12x46mm Size: As show in the picture Package Includes: 1pc Bikes Bottom Bracket Wrenchs 1pc Crank Cover Tool note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.