The bottom bracket tool is handy tool for repairing bike bottom bracket to install, loosen or tighten it. 

• The 20 teeth square hole spanner is mini and lightweight, easy to carry and use.
• The bottom bracket is compatible with any 20 teeth square hole bottom bracket, suitable for SHIMANO, FSA, VP, LP
• Made of high quality steel and processed with hardened heat treatment, high strength, anti-rust and durable.