●Application: suitable for front derailleur of road bikes. ●Function:It is an important part for guiding the brake and shift lever wire between front and rear gear shifter/brake system. ●INSTALLATION Fits on the frame under the bottom bracket to provide a low friction surface for shift cables. ●Material: made of plastic, lightweight and can be used for a long time. ●Package Content You will get 2 x bottom bracket cable guides and 2 x M5 x 10mm mounting screws.