ITEM NAME:Bottom Bracket Wrench Cycle BB Install Tool for Hollowtech II Crankset US S C2N2 Bottom Bracket Wrench Cycle BB Install Tool for Hollowtech II Crankset US S C2N2 100% Brand new and high quality. Designed specifically for the removal and installation of Bottom brackets Steel - powder coated Fits externally ringed bottom brackets. color:black Install tool for Shimano Hollowtech II and preload tensioning tool Dimension: 22cm x 7.5cm Package Includes: 1x Bottom Bracket Inatall Tool Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.