Wire used to add stability.
National Hardware Clothesline, Series: 2575BC, 0.14 in Diameter, 50 ft Length, 150 lb, Boxed Packing, Steel, Green, Plastic Coated, Resists: Rust and Mildew
Multiple strands of wire assure greater flexibility with no loss of strength. Low-tensile, soft and easy to twist/tie. 12 strand. 50'.
Clothesline wire is durable and long lasting.