ASCT LED Strobe Light Up Slap Armband & Wristband Be Seen in the Dark: Vibrantly colored band is illuminated by ultra-bright LED, which offers greater visibility than standard reflective gear. Provides extra safety when running at night! 3 Light Modes: With the push of a button, you can create a fast or slow strobe effect or continuous illumination. A fun, trendy accessory for parties, concerts & festivals! Long-Lasting Lithium Battery: Included battery provides up to 70 hrs of light and can be easily replaced. Pull strip ensures you have a brand-new battery when your band arrives. A Quality Product: Lightweight, heavy duty nylon ensures our wristband stands up to plenty of wear & tear. Fits most wrist sizes. Slaps on easily, stays put & is comfortable to wear. 1 Year, Hassle Free Warranty: Our strong customer service sets us apart! We hand-inspect every product and guarantee its quality. If you have a problem, well fix it promptly.