Description: 1. Brand new and high quality 2. Made of high quality material, durable and practical to use 3. Aluminum alloy material is solid and practical. 4. The frosted surface is comfortable and smooth without hurting hands. 5. Can be adjusted by 60°(plus and minus) to release the waist pressure. There is a height suitable for you. 6. Double screw design, high stability, not easy to fall off, firmer, safer riding. 7. Convenient and easy to install. Specification: Material: Aluminum alloy Color: Black (As Pictures Show) Size: 25.4-100mm，25.4-120mm，31.8-100mm，31.8-120mm Weight: About 280g /295g Package Includes: 1 x Bike Stem Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Mountain Bike Handlebar Riser Adjustable Road Bicycle Stem Extender Bicycle Stem. High-quality product,each process is strictly implemented in accordance with process standards. We will ship it ASAP,when you place the order. The products is manufactured after strict screening, which is trustworthy. If you have any questions,please feel free to contact us,we will solve it for you.