Features1Made of high-quality aluminum alloy, strong and durable, not easy to rust. 2It protects the bicycleframe and improve the braking effect. 3Small and lightweight, it will not burden riding. 4Delivered with fixing screws, easy to install and remove. 5General accessory, suitable for converting 14in to 16in, 16in to 18in, 18in to 20in, and 406 to 451.SpecificationFeatures:Made of high-quality aluminum alloy, strong and durable, not easy to rust.It protects the bicycleframe and improve the braking effect.Small and lightweight, it will not burden riding.Delivered with fixing screws, easy to install and remove.General accessory, suitable for converting 14in to 16in, 16in to 18in, 18in to 20in, and 406 to 451.Specifications:Color: Black/ Red(optional)Material: Aluminum AlloyItem Weight: 29.8g/ 1.1ozPacking List:2 * Refitted Pieces2 * ScrewsPackage List2 * Refitted Pieces2 * Screws