The Catahoula Decoy Anchor Cord consists of Number 18 tarred twisted nylon. Tarred treatment improves knot holding ability. Made from Type AA nylon seine twine, this line is designed especially for the water foul hunter. The #18 is twisted and is for the hunter on a budget, but demands the best. The tarred cord is black in color, a little stiff and at times tacky from the treat, but this tarred cord does have the best knotting qualities.