Our Small Dog Chain Tie Out with 830 Iron Snaps is constructed of #2 grade 30 proof coil chain zinc plated. The Shorter Links of Proof Coil = Less Knots! #830-5/8" nickel plated iron snaps at both ends makes this a strong chain for dogs or small animals weighing up to 75 lbs. The SC20 is 20 ft. in length. Our coated cable sling is recommended to be used with this product.