The Allen #70586 Bore-Nado Barrel Cleaning Rope is a 20 gauge cleaning tool designed for deep cleaning barrels of guns such as Remington, Colt, and Winchester. Made of brass and polyester materials, this multicolor rope is reusable and features a folding design for easy storage. Specifically designed for hunting activities, this unit is a must-have for gun owners looking to keep their firearms in top condition for optimal performance in the field.