Features: Enough length: You will receive 1 rolls threads with a total length of about 50m, enough length can be trimmed into different pieces as you want, so you can make various knitting crafts, sharing with your family or friends is also a good idea. Glow in the dark: Though they look like normal yarns in the day, the fluorescent design enables the yarns to glow at night, it can absorb light, so that they can glow in the dark, the fluorescent yarn can bring you for fresh visual experiences at night. Polyester fiber: our embroidery thread is made of polyester material, not easy to break or tear, soft to for touch and comfortable for your skin, you can use or store them for a long for time, they can glow brightly in the dark, making you or your clothing to be more eye-catching. DIY lovers: The thread for embroidery can be applied for many DIY crafts projects; You can use them to create gloves, scarves, sweaters, hats, crochet, blankets, or other yarn ornaments; You can also use them to decorate your party, and the glow in the dark function can add a more mysterious atmosphere to your items. Use method: Visible light for 10-15 minutes. It could give birth litigiously at night more than 12 hours after absorption. For weaving embroidery / sewing, adding highlights to your project. Specifications: Material: Polyester Length: Approx. 50m/164ft Type: G001, G002, G003, G004, G005 Thickness: 2~2.5mm Package Includes: 1 Roll Luminous Yarn note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.