This LED Light made of aluminum alloy and silicone material, durable and safe use. Mini size make it more easy to install, can be use for front light or rear light. You can install it on many place such as handlebar, the back of a helmet, the seat post and anyother place you can install. Feature - Color: Red. - Material: Aluminum Alloy+Silicone. - Size: 10 x 3 x 3cm. -Lighting time: full light: 50Hrs/Flashing: 150Hrs. - Mini Size: Small and compact premium bike light, with unique design make it easy to mount or remove. - This mini LED tail light for is great for warning and safety when riding at night. - With bright LED to provide high visibility to others at night. - Powered by 2 x CR2032 Button battery, no extra power connect require, more easy to use. - Made of aluminum and silicone material, durable and rustproof. - Dual lighting mode: IncludedConstantly bright mode and Flash light mode, you can choice the light mode as you need. - Quick and easy installation, waterproof. - Flexible bandage to install onto bike, fit for most bike, and so on. -Warm Tip: Dear buyer, Due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand Thank you