Features： 1、Made of high‑strength aluminum alloy, corrosion‑resistant, non‑deformable and durable. 2、You can freely adjust the spacer to suit your height. 3、Suitable for mountain bikes to lift the handlebar front fork. 4、Easy to install, just connect the original front fork rod. 5、3 different colors for you to choose, meet your differennt needs. Specification： Condition: Item type: Bike Handlebar Heighten Device Material: aluminium alloy Total length: Approx. 123mm/4.8in Inner diameter: Approx. 28.6mm/1.1in Heighten size: Approx. 80mm/3.1in Weight: Approx. 190g  Installation step description: 1. Remove the top cover with 5mm hex 2. Set aside the stem 3. Put on the heighten device 4. Put on the headstock stem 5. Thread into the height increaser screw 6. Use 5MM hex lock 7. Correct the angle and tighten the 4 screws in turn Package List： 1 Set x Bike Handlebar Heighten Device