Feature:1. High Quality Material: Bike fork stem extender is made of high quality aluminium alloy, solid, high toughness, not deformed, secure and durable.2. Function: Bike stem riser can reduce the pressure of waist effectively and raised to your comfortable position, give you a good riding experience.3. Practical Design: Double screw design, more firm fixation, not easy to fall off, high strength, more flexible, have a long service time.4. Easy Installation: Easy to install, just connect up the original front fork stem, convenient for using, save your time and energy.5. Fitment: Suitable for most bike with 28.6mm/1.13in fork. Compatible with most mountain bike, road bike, etc.Specification:Item Type: Bike Stem RiserMaterial: Aluminium AlloyInside Diameter: 28.6mm/1.13in(Mountain bike fork universal standard).Package List:1 xBike Stem Riser