Featrues 1. High-quality materials: the bicycle handlebar riser is made of high quality high-strength aluminium alloy material, and the workmanship is strict and exquisite. 2. Double screw lock design: the adjustable bike height adapter has a double screw lock design, which makes the handlebar stronger and more solid, not easy to fall off and safe to use. 3. Adjustable Height: With 4 washers, the height of the height adapter can be adjusted as desired. You can fully adjust the bar height to suit your riding needs, effectively reducing the pressure of the waist and making cycling more relaxed. 4. Suitable for Most Bikes: Compatible with most bikes with 28.6 mm threadless steering such as road bike, mountain bike, MTB, BMX etc. Please measure your steer stem before ordering if you are not sure about the diameter. 5. Good Service: If you have any questions about your purchase, please feel free to contact us. We will respond to you as soon as possible and do our best to solve your problems, we cant wait for your advice. Specification Material: Aluminium Alloy Color: Black Red Blue Gold Silvery Size: 13828.6mm Weight: 0.18kg Package Include: 1 Bicycle Handlebar Raiser Stem