The Prolux Cotton Sock for Sealing Iron is a professional-grade, purpose-made cover designed specifically for use with Prolux heat sealing irons. This high-quality cotton sock provides a smooth, non-stick surface, helping to protect delicate covering films from direct heat and preventing scratches, scorching, or melting during application. Easy to fit and replace, it ensures even heat distribution and prolongs the life of your iron's soleplate. Ideal for RC modelers and hobbyists who demand precision and protection when applying heat-shrink coverings.