These rust-proof cables are available in 4 lengths and are recommended for dogs over 50 lbs. Available in silver.

Made of vinyl coated aircraft cable so you know it's strong and durable.
Rust-proof and won't fray for a long-lasting, quality product. Features bronze snaps that swivel and add extra durability.
Allows freedom for dogs and insures safety while letting them roam around the yard, and with no links, you don't have to worry about it getting tangles.
Safe and stronger than normal chain tie-outs and will not dig up grass. Easy to clean and store which makes it great to take with you on vacations when needed.
Available in 4 different lengths to fit your needs and is suitable for dogs over 50 pounds.

Four Paws Tie-Out Cable - Heavy Weight