ITEM NAME:2Pcs Cable Guide Bike Bottom Bracket Shifter Cable Guide Line Tube Housing Description: - Made of high quality plastic, lightweight but durable - Dual-Position mounting allows precise alignment of cable to derailleurs - The Short slot is for rear shifting/braking system and the long slot is for front ones - Short slot side is near crankset - Size: Approx.4.2cmx3cm/1.57x1.18 inch - Comes with One M5x11.3mm Screw Package Included: 2 Pieces Bottom Bracket Cable Guide and 2 Mounting Screw Note: Please allow slightly difference due to manual measurement. Thanks.2 Pieces Bottom Bracket Cable Guide and 2 Mounting Screw. - The Short slot is for rear shifting/braking system and the long slot is for front ones. - Short slot side is near crankset.