General Pipe Cleaners Flexicore® Replacement Cable, 1/4 in Dia, For Use With: Super-Vee and Power-Vee Drain Cleaner, 50 ft Maximum Run

Heavy-gauge wire coiled tightly around 49-strand aircraft-type wire rope and heat treated. Has unequalled strength and the right amount of flexibility. So tough it carries a one-year warranty against defect or breakage. Flexicore Patent Nos. 2,244,735 and 2,849,870.