Prevue Pet Products medium-duty 30' tie-out cable 2121 is designed for dogs up to 65 lbs. Medium duty, galvanized aircraft-grade wound-steel cable is housed within crack-resistant, high visibility Red vinyl casing to ensure your dog stays safe and secure. Premium quality die-cast iron swivel bolt snaps at both ends to connect easily. Medium duty tie out cable is 30 foot long with a 3.3 mm diameter wire cable; 4.8 mm in vinyl casing.