... thread.kids and even adults will love the surprise that their embroidery design will glow in the dark.look like ordinary embroidery thread ... out the lights and see the glowuse our glow-in-the-dark embroisery thread just like any ordinary thread.when washing it, do not ... losing its glow.available in white, yellow, green, pink, peach, lavender, blue and so on. glow in the dark ...