Features: brand new and high quality A special thread which will glow in the dark after exposing to the natural or artificial light Can be used for Halloween costumes, safety use, stage costuming, pajamas, fashion apparels, Christmas decorations, pillowcases, cross-stitch etc. It is a great way to add fun and personality to all kinds of your embroidery projects Using the glow in dark thread on some dark colored fabric will bring a stunning glowing effect. Usually a project with denser stitches or multiple outline stitches will have a better glow effect. Specifications: Material:Polyester Type:C01/C03/C05/C07/C08/C09/C10/C11/C13/C15/16 Size:Approx. 6.3x13cm2.48x5.12 inches Package Includes: 1 Roll Embroidery Thread 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.