Ahrora is a fun polyester glow-in-the-dark thread that lights up the night! Use it on everything from art quilts to costumes to embroidery. This thread adds a unique dimension to any sewing project. Simply switch off the lights, and your stitching will glow! Charge it under sunlight or a bright light for a stronger glow.Material: Glow in the Dark PolyesterWeight: 40wtSizes: 183m (200yd)Usages: Machine embroidery, decorative stitching, art quilts, cosplay costumes, crafts.