Description This thread is a new kind of textile material with. It could give out light continously at night over 12 hours after absorbing the visible light for 10-15 minutes. Therefore, it is widely used in developing new textile and products. To get a effect, use thread liberally. The more thread you put in an area, the more glow you will get.-spools sewing thread Features - Color: Floating white. - Material: Polyester. - Size: 13 * 9 * 8cm(L * W * H). - The sewing thread will glow continously in the dark for 4 to 6 hours after absorbing enough light for 2 to 3 hours.-heavy duty thread for sewing - It features smooth, soft, which can be used for baby clothes, bags, knitted hat, shoelaces, phone straps, cross-stitch, sewing or etc.-sewing threads - and permanent glowing effect, meet the environmental standards.-thread for sewing machine - Length: 3000 Yards.-machine embroidery thread It is a new kind of textile material with which is widely used in developing new textile products and products -sewing thread spools The sewing thread will glow continously in the dark for 4 to 6 hours after absorbing enough light for 2 to 3 hours -sewing thread white It features smooth, soft, which can be used for baby clothes, bags, knitted hat, shoelaces, phone straps, cross-stitch, sewing or etc-yards spool thread 1 * 3000 Yards Spool Luminous Glow In The Dark Machine Embroidery Sewing Thread (Floating White)-luminous embroidery thread