SENWOW Ultra Bright Waterproof Silicone LED Bike Light, Cycling Safety Light Combo Warning Light Set 2 LEDs Front, 1 RED + 1 WHITE Easy Installation: Install or Remove Without Any Tools. Mounts to Any Bike Quickly and Easily by Looping the Strong Silicone Loop around the Frame, and Hooking to the Light. Convenient Operation: One-Touch Lighting Switch Design. 3 Kinds of Switch: Full light, Flash, Slow Flash. Powered by: 2 pcs CR2032 Batteries each (included) Water Resistant Shower Proof Design - Not Afraid of Rain Flooding. Durable Silicone Construction Holds Up in All Weather Conditions.