Welcome to our shop! DURABLE: The bike stem is made of 6061 aluminum alloy. Strong stretchability, resistance to oxidation and corrosion, not easy to disassemble and safer to use ADJUSTABLE: The mtb stem is equipped with 4 washers. The height of the extension part can be adjusted by adjusting the number and type of washers, thus effectively reducing the pressure on the waist during riding HEXAGONAL SCREW: Hex screws connect and fix the riser part of the bike's front fork and the handle together to ensure stability and compactness COMFORTABLE: The bicycle handlebar stem makes the operation more stable, easier to support while climbing, and is comfortable and convenient to use EASY TO INSTALL: Simply connect the stock fork to complete the installation Our stem fits most mountain bikes, road bikes and more Due to manual measurement, the products you receive may have some dimensional errors Due to different monitors, the products you receive may be slightly different from the pictures Actual delivery quantity: 1 piece 100% satisfaction - Our customers are our priority. If you find any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We do our best to provide you with satisfactory after-sales service.