Description This thread is a new kind of textile material with eco-friendly. 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 exquisite products. To get a effect, use thread liberally. The more thread you put in an area, the more glow you will get.-white thread for sewing Features - -blue-machine embroidery - Material: Polyester. - Size: 13 * 9 * 8cm(L * W * H). - Length: 3000 Yards.-sewing machine thread - Thickness: 150D/2.-embroidery thread - Super bright and permanent glowing effect, meet the latest environmental standards.-sewing thread - For machine embroidery/ sewing, adding highlights to your project.-thread for sewing - The sewing thread will glow continously in the dark for 4 to 6 hours after absorbing enough light for 2 to 3 hours.-white sewing thread all purpose - It is a new kind of textile material with eco-friendly which is widely used in developing new textile products and exquisite products.-sewing thread spools - It features smooth, soft, which can be used for baby clothes, bags, knitted hat, shoelaces, phone straps, cross-stitch, sewing or etc.-threads for embroidery - Pls be noted that due to lighting effects and monitor's brightness/contrast settings, the color tone of the website's photo and the actual item could be slightly different.-embroidery luminous threads It features smooth, soft, which can be used for baby clothes, bags, knitted hat, shoelaces, phone straps, cross-stitch, sewing or etc.-white embroidery thread The sewing thread will glow continously in the dark for 4 to 6 hours after absorbing enough light for 2 to 3 hours. - embroidery luminous threads It is a new kind of textile material with eco-friendly which is widely used in developing new textile products and exquisite products. -sewing threads 1 * 3000 Yards Spool Luminous Glow In The Dark Machine Embroidery Sewing Thread (Sky Blue)-embroidery bobbin thread