Features: Make from Aluminum Alloy, ensuring excellent durability and stability for long terms use. Light weight but high strength would not add burden to your bike. The Handle Bar Stem adopts the overall No welding process, strong and Enduring. Suitable for 25.4mm diameter handlebar clamp and 22.2mm fork tube steerer. Universals suitable for fold bikes, road bikes. Specifications: Materials: Aluminum alloy Size: Small/M/L S size: about 15x22.2cm/5.91x8.74inch M size: about 20x22.2cm/7.87x8.74inch L size: about 30x22.2cm/11.81x8.74inch Package Includes: 1pc Risers Stem 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.