The Ideal 31-063 Tuff-Grip Pro S-Class Fish Tape offers a nonconductive fiberglass core with outer nylon coating that offers 500 pound tensile strength for cable and wire installation. Fish Tape features formed eyelets that accommodate six No. 10 bare wires. It is housed in an impact-resistant plastic case with large rugged handles for better winding control. Ideal Tools Fish Tape measures 100' x .1875" x .06".