The TurfCordz Replacement Safety Cord Tubing takes resistance training to the next level.áWith six resistance options and 8 available lengths, Safety Cord Tubing provides a range that meets the resistance training needs of every athlete. The TurfCordz Replacement Safety Cord Tubing features a proprietary safety cord design with a strong nylon cord spanning the length of the heavy latex tube. Harness not included. Please note that fittings/clips vary depending on the resistance and length chosen. The tubing measures 8 feet in length. Silver has 3 - 8 lbs if resistance.