Description: - BB 3-in-1 wrench hollow shaft wrench is made of high-quality aluminum alloy material, fully CNC machined, sturdy and portable - For BB51 BB52 BB70 BB9000 BB9100 XTR XT - Precision wire cutting, each tooth is straight and smooth, can fit closely with the chain , not easy to , very easy to operateSpecification: - Material: Stainless steel - Colour: BlackSize Chart:Size: 225x65x15mm/8.86x2.56x0.59inchPackage Includes:1 Piece BB WrenchNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!