Features:_x000D_1. Suitable for mountain bicycle to rise up the handlebar fork stem._x000D_2. Two styles optional. Can extend the fork stem by 70mm or 100mm maximumly. _x000D_3. Easy installation, just connect up the front fork stem. _x000D_4. Separate washer design, can increase or decrease the washer to adjust the height as needed._x000D_5. Aluminum alloy material, durable. Double screw fixation, more firm and not easy to fall off._x000D_Notice:_x000D_1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow slight deviation due to manual measurement._x000D_Specification:_x000D_Type: Bicycle Fork Stem Riser_x000D_Material: aluminium alloy_x000D_Base Diameter: 1 18' 28.6mm_x000D_Suitable fork stem diameter: 28.6mm standard_x000D_Size: as picture show_x000D_Include: Bicycle Fork Stem Riser wrenchPackage List:_x000D_1 x Bicycle Fork Stem Riser_x000D_1 x wrench