Features: The Shifters is suited to quick shifting, give cyclist the ability to downshift 3/9 gears in one strokes. Gear display positioned belows the handlebars, numbered gear display indicates gear position at glance. Smooth shifting performances and close ratio gearing make surely that you change speed fast and smoothly, you could check your speed on the gear window. Light shifting operate, and suitable for internal cable routing main lever body. Suitable for mountain bikes, commuters bikes, folding bikes. Specifications: Materials: Metal Styles: single side 3-speed/single side 9-speed Installation hole diameter: about 22.2mm/8.74inch Package Includes: 1pc Shifts Lever note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.