Double screw fixing design makes it firm and stable. Premium aluminium alloy material makes it wear resistant and not easy to deform.Adjustable design allows you to adjust the height as you need. Frosted and grinding process brings a strong texture and bright color.Made of high-quality aluminium alloy, it is firm and durable to use.We have two styles for you to choose.It is suitable for mountain bikes.Item Name: ExtenderMaterial: Aluminum AlloyFeatures: High Strength, Corrosion Resistant, AdjustableSize Details: Style 1 Size: 12.4cm x 2.86cm or 4.88" x 1.13" (Approx.)Style 2 Size: 13.8cm x 2.86cm or 5.43" x 1.13" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Extender