MicroBike Lights are the safe and convenient way to illuminate your bike. Barely larger than a quarter, these lights are visible at distances up to a mile and can be carried comfortably in your pocket when not in use. Each light has a bungee cord and curved inner surface that allows the lights to be securely attached to your seat post, handlebars or bike frame. Micro Bike Lights ● Front and Rear Safety Lights ● 2 Function: Steady and Flashing ● Long Lasting LED Rated at 100,000 Hours of Use ● Convenient Bungee Closure Attaches to Any Bike ● Low Current Draw Extends Battery Life ● Requires 2 CR2032 Replaceable Lithium Batteries (included)