simthread Glow in The Dark Thread, Polyester Embroidery Thread, 5 Spools 550 Yards Each, for Home Embroidery and Sewing Machine HIGHLIGHT YOUR DESIGN - Glow in the Dark Thread 40 weight Polyester Embroidery Thread FIVE COLORS - 5 color of Glow in the Dark Thread kit perfectly decorate your Halloween, sky, stars project beautifully CAUTION - Glow in the Dark Thread WILL GLOW at the dark night, WILL NOT GLOW in the daytime. FREE EXTRA BOBBIN CORES BONUS - Simthread Glow in the Dark Thread kit bring happiness and fun to your home. MAKE SURE BUYING THROUGH "Simthread LLC" (Sold by) Glow in the Dark Thread for original warranty.