Bicycle BB Bottom Brackets Wrench Mountain MTB Road Bike Installation Remover Spanner Repair Tools Feature: Ultra-light aluminum alloy, one-piece precision molding The bicycle bottom bracket can be removed and installed smoothly with a wrench. Specification: Color: black, red Material: aluminum alloy Weight: About 50g Size: about 250*70mm Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.