Thread 'charges' with natural or artificial light in just a short time.
Soft and flexible for smooth stitching; works with all embroidery designs or sewing machines.
100% Polyester
Machine washable and dryable



*Feature:
slim -5m, 3000m (normal needle)
fat -3m, 500m (big needle)

*Material: Coated polyester(About fat thread, white powders can falling out when you sewing. but doesn`t harmful at all.)

*Size:
slim -5m, 3000m (embroidery)
fat -3m, 500m (sewing machine)