GIGBM Raiser Bike Stem Mtb Power Handlebar Extension Aluminum Alloy Handlebar Extension Adapter Bicycle Parts 31.8/25.4 Bicycle Handlebar Stem Folding Bike

packing include:1 * bike handlebar riser and 4/5mm(0.16/0.20in) toolsize: 31.885mm, 31.8100mm, 31.8120mm(1.254.72in), 25.4100mm, 25.4120mm color: black front fork diameter: 28.6mm(1.13in) material: aluminum alloy size: 31.885mm(1.253.35in), 31.8100mm(1.253.94in), 31.8120mm(1.254.72in), 25.4100mm(1.003.94in), 25.4120mm(1.004.72in)

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.