Bike Tail Light Bicycle Cycling LED Safety Rear Lamp Flashing Warning 3 Modes Product Feature 3 Mode Options: Lights feature a one-touch switch with multiple lighting modes. 3 Modes include steady, quick flash, and slow flash. The small but bright red LED bike tail light provides reliable visibility. Quality Construction: Sturdy waterproof aluminum body is able to work in outdoor conditions. Durable and sturdy. Wide Angle Safety: Innovative design allows a wide light range of 240-degree sidelight for added visibility and a wider angle of safety. Universal Fit: Rubber strap allows for more flexibility to fit a wider range of bike types and sizes. Easy Installation: To use is easy, quick to install and remove. No tools required. Each light is powered by 2x CR2032 batteries (included). Note: When using it for the first time, please take out the insulating sheet. Product Specification Type：Bike Tail Light Material：Aluminum Body + Rubber Strap Light Color：Red 3 Light Modes：Steady, Slow Flash, Quick Flash Light Runtimes：Steady 50hrs, Flash 150hrs Light Visible Angle：240° Light Dimensions：2.5x2.5cm/1x1in Black Strap in Unstretched Length：10cm/4in Powered By：2xCR2032 Batteries (Included) Package Included 2 x Bike Tail Light