Features: 1.Luminous Machine Embroidery Thread is made of high quality polyester fiber + luminous factor, skin-friendly material, safe and durable. 2.The embroidery sewing thread can continuously glow for more than 12 hours at night after absorbing sufficient visible light during the day, 3.Various Specifications: 1000 yards: purple, pink, white; 3000 yards: yellow, medium yellow, blue. 4.How to get the best glow effect: 1. It is important to keep the embroidery project in sufficient light to charge the thread. 2. Usually, projects with denser stitches or more outline stitches will have a better luminous effect. 3,Using the glow in dark thread on some dark fabrics will bring better glow effect. 5.Glow in the dark machine embroidery thread is widely used in Halloween costumes, bags, stage costumes, cross-stitch and anywhere you want glow effect. Color: 1000 Yards: Purple, Pink, White 3000 Yards: Yellow, Middle-Yellow, Blue Material: Polyester fiber + noctilucent factor Thickness: 150D/2 It could give out light continuously at night over 12 hours after absorbing the visible light for 10-15 minutes.Therefore,it is widely used in developing new textile products 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. If only partial Embroidery Thread absorb natural or artificial light is not enough to get a good effect. Packaged: 1 x Luminous Sewing Thread Note: Please be reminded that the color of the picture and the actual item could be slightly different due to the different monitors and lighting effects. 【High Quality Material】: Luminous Machine Embroidery Thread is made of high quality polyester fiber + luminous factor, skin-friendly material, safe and durable, a special thread that absorbs natural or artificial light, then glows in the dark, and does not fade after washing. 【Convenient and Practical】: The embroidery sewing thread can continuously glow for more than 12 hours at night after absorbing sufficient visible light during the day, which is a great way to add fun and personality to various embroidery projects. 【Various Specifications】: 1000 yards: purple, pink, white; 3000 yards: yellow, medium yellow, blue. A variety of popular pastel colors will give you more options for creative patterns. 【How to get the best glow effect】: 1. It is important to keep the embroidery project in sufficient light to ""charge"" the thread. 2. Usually, projects with denser stitches or more outline stitches will have a better luminous effect. 3,Using the glow in dark thread on some dark fabrics will bring better glow effect. 【Widely Used】: Glow in the dark machine embroidery thread is widely used in Halloween costumes, bags, stage costumes, pajamas, Christmas decorations, pillowcases, cross-stitch and anywhere you want glow effect.