Amazon has the 20-Ft Four Paws Walk-About Rust Resistant Galvanized Steel Tie-Out Cable (for dogs over 50-Lbs) on sale for $3.71 – extra $1.40 off when you clip coupon on the product page = $2.31 + Free Shipping w/ Prime. For non-Prime members shipping is $5.99 or free on orders $25+.