Be cool! Be seen! Bike Brightz LED Lights are a revolution in bicycle lighting. This unique new light uses 6 long lasting wide-beam LEDs to make bicyclists more visible at night. It lights up any bike with a vivid halo of intense color in 4 modes: constant, slow flashing, medium flashing, and fast flashing. Bike Brightz are lightweight, durable, easy to install, affordable, and water resistant. These lights fit on kids' and adult bikes and run on 2 AAA batteries (not included). Comes with 2 plastic ties for secure installation and 1 non-skid barrier pad to protect your bike's finish. Measures 5.5" L x 1.25" H x 0.75" W.