1,Aluminum alloy material is solid and practical. 2,The frosted surface is comfortable and smooth without hurting hands. 3,Can be adjusted by 60°(plus and minus) to release the waist pressure. There is a height suitable for you. 4,Double screw design, high stability, not easy to fall off, firmer, safer riding. 5,Convenient and easy to install. 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: 31.8x85mm, 31.8x100mm, 31.8x120mm, 25.4x100mm, 25.4x120mm (optional) Color: black Material: aluminum alloy Torque: 10-12N.M Front fork diameter: 28.6mm Hole spacing: 31.8x85mm: 85mm 31.8x100mm or 25.4x100mm: 100mm 31.8x120mm or 25.4x120mm: 120mm Handlebar diameter: 31.8x85mm or 31.8x100mm or 31.8x120mm: 31.8mm 25.4x100mm or 25.4x120mm: 25.4mm Package size: 31.8x85mm: 132 x 55 x 40mm or 5.2 x 2.2 x 1.6in 31.8x100mm: 155 x 52 x 40mm or 6.1 x 2.0 x 1.6in 31.8x120mm: 167 x 43 x 40mm or 6.6 x 1.7 x 1.6in 25.4x100mm: 155 x 43 x 40mm or 6.1 x 1.7 x 1.6in 25.4x120mm: 165 x 52 x 40mm or 6.5 x 2.0 x 1.6in Package weight: 31.8x85mm: 271g or 9.6ounce 31.8x100mm: 313g or 11.0ounce 31.8x120mm: 312g or 11.0ounce 25.4x100mm: 299g or 10.5ounce 25.4x120mm: 312g or 11.0ounce Packing List: 1 x Bike Handlebar Riser 1 x Bike Handlebar Riser Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.