Features: Achieve precise adjustments for your 12 speed electronic derailleur with our tool, ensuring smooth gear shifts and enhances cycling experience. Craft from high strength plastic, this tool is light weight, features ergonomic designs that make its easy to operate across various bike brands. Elevates your cycling setups with this essential repair tool, a must having in any cyclists tool for gear performances. Great for professional road cyclists and bicycles maintenance enthusiasts who demand superior performances. Perfect for routine bike maintenance, preparing race adjustments, and preparing for long distances ride. Specifications: Materials: Plastic Color: As The Picture Shows Package Weight: approx.15g Size: approx.81x36mm/3.18x1.41in (More Size Detail, Please See Picture.) Package Includes: 2Pcs Road Bike Rear Derailleur Adjuster note: Please allow 1-3mm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!