The Flipo Micro Bike Light Set is the safe and convenient way to illuminate your bike. Each light is barely larger than a quarter, the Micro Bike Light Set is visible at distances up to a mile and can be carried comfortably in your pocket when not in use. Installation of the Micro Bike Light Set is easy! Each Flipo Micro Bike 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. The Micro Bike Light Set includes front and rear safety lights with 2 light functions: steady and flashing. The Flipo Micro Bike Light Set requires 2 CR2032 replaceable lithium batteries (included). Be seen and kept safe with the Flipo Micro Bike Light Set.