Heavy gauge wire coiled tightly around 42 strand aircraft-type wire rope and heat treated ||| Cable has unequalled strength and the right amount of flexibility ||| One year warranty against defect or breakage ||| EL basin plug head allows for flexibility when maneuvering through pipes ||| Use down head and double down head for increased flexibility – Manufacturer: General Wire Spring.From the ManufacturerHeavy-gauge wire coiled tightly around 42-strand aircraft type wire rope and heat treated. Has unequalled strength and the right amount of flexibility.