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 good glow effect, use thread liberally. The more thread you put in an area, the more glow you will get._x000D__x000D_Features_x000D__x000D_- Color: Green._x000D_- Material: Polyester._x000D_- Size: 13 * 9 * 8cm(L * W * H)._x000D_- Length: 3000 Yards._x000D_- Thickness: 150D/2._x000D_- Super bright and permanent glowing effect, meet the latest environmental standards._x000D_- For machine embroidery/ sewing, adding highlights to your project._x000D_- The sewing thread will glow continously in the dark for 4 to 6 hours after absorbing enough light for 2 to 3 hours._x000D_- It is a new kind of textile material with eco-friendly which is widely used in developing new textile products and exquisite products._x000D_- It features smooth, soft, which can be used for baby clothes, bags, knitted hat, shoelaces, phone straps, cross-stitch, sewing or etc._x000D_- Pls be noted that due to lighting effects and monitor& 39;s brightness/contrast settings, the color tone of the website& 39;s photo and the actual item could be slightly different.Packing list: 1 * 3000 Yards Spool Luminous Glow In The Dark Machine Embroidery Sewing Thread (Green)