Coats & Clark Thread - Glow In The Dark ThreadGlow in the dark threads have been popular with joggers and trick-or-treaters for some time now, but a new trend is developing in embroidered baby and children's items. Coats Glow in the Dark pastel colors are beautiful in daylight, but turn out the light and watch the delight on children's faces as they see the thread glow in a darkened room! At 40 wt, it is compatible with digitized embroidery designs. For optimum glow, select filled in designs rather than outlines. Glow quickly recharges when exposed to light. Coats Glow in the Dark 100% polyester thread (Article D86) is machine washable and dryable with 7 pastel colors in the range put-up on a100 yard spool.