Be seen and be safe with wheel brightz LED lights by BikeBrightz. Wheel Brightz are cool and colorful biking accessories that are affordable and easy to install. Bike Brights bike accessories are electroluminescent, flexible wires that mount to your or your child"s bike and increase the visibility of the rider while riding at night. One Wheel Brightz LED strip has 20 bright MicroLED lights powered by the battery pack. Weave the waterproof tube into the spokes of your bike, turn it on, and then ride through the neighborhood galaxy like a glowing meteor! Attach the battery pack to the spokes with the included Velcro strap and secure the LED strip with the included zip ties! This wheel brightz LED strip is multicolored: orange, blue, red, and green! This package includes: One string of LED lights in clear tubing with connector battery pack and end cap, six mounting ties to secure LED light string. Works with almost all bike wheels 20" and over, Does not work with wheels that have abnormally high or low number of spokes. LED lights and battery pack are waterproof and mount directly to spokes of wheel. Waterproof and mesmerizing! Lasts for up to 48 hours before needing to replace the batteries. Requires 3 AA batteries (not included).