Nite Ize Marker Wave Bracelet BE SEEN + SAFE DURING NIGHTTIME ACTIVITIES - This bright LED Marker Band is perfect for runners and cyclists who keep going even after sunset and get out before sunrise. The bright red LED makes the wearer instantly visible in the dark HIGH VISIBILITY GLOW + FLASH MODES - The bright red LED is activated with the simple push of a button and can be set to glow or attention-getting flash modes CLIP TO WRISTS, ARMS, ANKLES, OR PACKS - Add important visibility on your evening run, bike, or hike with the wearable LED Marker Band DURABLE NYLON DESIGN WITH REFLECTIVITY PATTERN - You can count on this durable band and LED light strip to charge onward with you REPLACEABLE BATTERIES INCLUDED - Powered by a replaceable 2032 lithium battery that last up to 100 hours, this running safety light can be used over and over again WORRY-FREE GUARANTEE - all Nite Ize products are backed by our Worry-Free Guarantee