Features: 1. Installation without radiation, four major improvements for the attachment of the buckle. 2. A buckle, PC + aluminum alloy, not easy to break. 3. The lamp body is fixed by a firm and secure screw. the light source design is brighter and more dazzling. 4. Extend the USB data cable to 0.6 meters, which is convenient for direct charging in various environments. Specification: Color: Transparent Material: PC + Alloy of aluminum Packing size: about 11.5 * 8.5 * 3.7cm / 4.53 * 3.35 * 1.46in Packing list: Bike spoke light * 1 Charging cable * 1 Rubber grommet *6 Note: Due to lighting effects and shooting angles, there is color difference in the product, please understand. Due to manual measurement, there is tolerance in the size of the product.