This 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(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*85mm, 31.8*100mm, 31.8*120mm, 25.4*100mm, 25.4*120mm (optional)Color: blackMaterial: aluminum alloyTorque: 10-12N.MFront fork diameter: 28.6mmHole spacing:31.8*85mm: 85mm31.8*100mm/25.4*100mm: 100mm31.8*120mm/25.4*120mm: 120mmHandlebar diameter:31.8*85mm/31.8*100mm/31.8*120mm: 31.8mm25.4*100mm/25.4*120mm: 25.4mmPackage size:31.8*85mm: 132 * 55 * 40mm / 5.2 * 2.2 * 1.6in31.8*100mm: 155 * 52 * 40mm / 6.1 * 2.0 * 1.6in31.8*120mm: 167 * 43 * 40mm / 6.6 * 1.7 * 1.6in25.4*100mm: 155 * 43 * 40mm / 6.1 * 1.7 * 1.6in25.4*120mm: 165 * 52 * 40mm / 6.5 * 2.0 * 1.6inPackage weight:31.8*85mm: 271g / 9.6ounce31.8*100mm: 313g / 11.0ounce31.8*120mm: 312g / 11.0ounce25.4*100mm: 299g / 10.5ounce25.4*120mm: 312g / 11.0ouncePacking List:1 * Bike Handlebar Riser