Let's light up your hair with our hair lights glowbys for tonight party, nightclub, prom, holiday, concert, wedding, raves, new year or any event. Our hair light glowbys is an unique and fantastic hair accessory made by fiber optic strands with batteries included that last up to 6 hours. It is reusable so you can use it again, again, and again. Just change the batteries when the hair light dims.