Features1Aluminum alloy material is solid and practical. 2The frosted surface is comfortable and smooth without hurting hands. 3Can be adjusted by 60 Degree(plus and minus) to release the waist pressure. There is a height suitable for you. 4Double screw design, high stability, not easy to fall off, firmer, safer riding. 5Convenient and easy to install.SpecificationThis product has five specifications, which is convenient for you to adjust the handlebar to the height and angle suitable for you, and it is more comfortable to ride.Features:Aluminum alloy material is solid and practical.The frosted surface is comfortable and smooth without hurting hands.Can be adjusted by 60 Degree(plus and minus) to release the waist pressure. There is a height suitable for you.Double screw design, high stability, not easy to fall off, firmer, safer riding.Convenient and easy to install.Specifications:Size: 31.8*90mm, 31.8*110mm, 31.8*130mm, 25.4*90mm, 25.4*110mm (optional)Color: blackMaterial: aluminum alloyFront fork diameter: 28.6mmHandlebar diameter:31.8*90mm, 31.8*110mm, 31.8*130mm: 31.8mm25.4*90mm, 25.4*110mm: 25.4mmPackage size:31.8*90mm: 140 * 55 * 45mm / 5.5 * 2.2 * 1.8in31.8*110mm: 150 * 50 * 45mm / 5.9 * 2.0 * 1.8in31.8*130mm: 180 * 50 * 45mm / 7.1 * 2.0 * 1.8in25.4*90mm: 140 * 50 * 45mm / 5.5 * 2.0 * 1.8in25.4*110mm: 150 * 50 * 45mm / 5.9 * 2.0 * 1.8inPackage weight:31.8*90mm: 307g / 10.8ounce31.8*110mm: 324g / 11.4ounce31.8*130mm: 341g / 12.0ounce25.4*90mm: 296g / 10.4ounce25.4*110mm: 315g / 11.1ouncePacking List:1 * Bike Handlebar RiserPackage List1 * Bike Handlebar Riser