Bicycle Handlebar Stem Extender. Features: This Product is a Bicycle Stem Extender, Which is Made of Quality Aluminum Alloy. It is Tough, Has a Stable Structure, and Can Rise the Bicycle Stem Height. Easy to Install and Detach, Has High Strength. A Good Partner for Your Bicycle, You Can Use It to DIY Your Bicycle. This Bicycle Stem Heighten Deviceis Suitable for Most Mountain Bicycle Specifications: Clamp Diameter: 28.1 - 29.5mm Type: Other Width: 300 - 400mm Use: Mountain Bikes Use: Road Bicycles Model Number: Bicycle Handlebar Stem Extender Length: 123mm Components: Handlebar Material: Aluminum Alloy . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.