Ultra-bright Wearable flashing LED reflector. Super versatile! Wear on shorts/waistband, hydration belt, pack/bag strap, shirt sleeve/collar, vest, caps/hats and more. Brilliant LEDs! • Add high brilliance reflectivity to just about anything! • Ultrabright flashing LED • Simple press button on-and-off • Drugstore battery for easy replacement • Battery included / ready for use • Easy to attach with integrated dual magnet • Available in two shapes and three fluorescent colors • Less than 1/2 ounce, Vizlet LED adds feather-light reflectivity/brilliant fun!