Specification Size:About 59x29x10mm Colour: Black Solar automatic charging - - Solar automatic charging, USB auxiliary charging can be used on cloudy days for a long time Ultra-long battery life - - The ultra-long battery life can be used for more than ten days on a single charge, and the smart sensor does not require hands-on use. High-quality materials - - Heat-resistant ABS material, not afraid of sunlight, improves driving safety. Advanced design- - intelligent sensor, absorbs sunlight without flickering during the day, and automatically flickers at night. Red light or blue light optional, technology upgrade, environmental protection and energy saving. Our LED high-gloss lamp beads will automatically flash when the light is low. Easy and simple to use- - The flashing pattern of this car warning light can be easily controlled through the setting switch on the back. It's extra sticky and less visible, making it easy to install and remove thanks to the non-marking double-sided tape on the bottom. Package Included: 1 pcs Device Pro Notes: 1.Due to manual measurement, please allow a difference of 1-5g or 1-2cm. 2.Due to different displays and different lighting, the picture may not reflect the actual color of the item. Thank you for your understanding.