Fit for 4mm/5mm outside diameter derailleur line Color:Red,Black,Titanium Material:Aluminium Alloy Quantity:1/5pcs Brand new with high quality Length:About 32mm Features: The mid-section fine-tuning screws are processed by ultra-lightweight aluminum alloy CNC, the surface is anodized, the colors are bright, the internal threads are fine, and the grease is coated to adjust the smoothness and not jerky. Effectively adjust the forward and backward shifting speed to solve problems such as jumping gears and inability to change speed. Package Include: 1pc or 5pcs MTB Bike Shifter Cable Adjustable Screws Notice: 1.1cm=10mm=0.39inch. 2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering. 3.Please understand that colors may exist chromatic aberration as the different placement of pictures.