This bicycle front fork stem extender can freely adjust the spacers to suit your height, Easily adjustable handlebar height. ALUMINUM ALLOY MATERIAL: The bicycle handlebar extender is made of aluminum alloy, which has high strength and light weight, Anti-, anti-rust, long-lasting and . Adjusting height, flexible control and reducing load can effectively improve your riding posture and relieve the pressure on your waist and arms. You can use the riser accessories to properly adjust the handlebar height so that you can maintain traction more easily on steep hills, giving you a comfortable and relaxing riding experience. Height Increaser:150mm Colour:Black Material:Aluminum Alloy Package Contents: 1 * Bicycle stem heightener Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.