Superior to nylon tracking lines, our tightly woven 100% cotton tracking lines let out smoothly yet are easy to grip. Our cotton tracking lines have shown themselves to be durable and easy to maintain even when tracking is through rough pasture, dirt, mud, water and rocky terrain. Our cotton tracking lines are 1" wide and 33' long, regulation for Schutzhund and IPO. Tensile strength 500 lb. We use only the best solid brass and stainless steel hardware to insure longevity and durability.