Features： 1、Made of high quality carbon fiber material, high strength and durable. 2、Super lightweight, effectively reduce the weight of bike. 3、Easy to install and disassemble, convenient to use. 4、Stylish appearance, exquisite workmanship, polished smooth sense of touch, comfortable to use. 5、High durability and resistance of structures, essential bicycle accessory for bicycle lovers. Specification： Features: 1. Made of high quality carbon fiber material, high strength and durable. 2. Super lightweight, effectively reduce the weight of bike.  3. Easy to install and disassemble, convenient to use. 4. Stylish appearance, exquisite workmanship, polished smooth sense of touch, comfortable to use. 5. High durability and resistance of structures, essential bicycle accessory for bicycle lovers. 6. Good replacement part for your mountain bike. Specifications: Item Type: Bicycle Stem Material: Carbon Fiber Colors: Blue, Green, Red Fit for Handlebar Diameter: Approx. 31.8mm/1.25inch Length: Approx. 80mm/3.15inch, 90mm/3.54inch, 100mm/3.94inch Packing List: 1 * Bike Stem Notes: 1. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List：