This 5/16" x 35' style drain auger cable manufactured by DCD - Draincables Direct is made of steel wire, with a wire core to improve strength and torque resistance and be applied to a drum style drain cleaning machines. The sewer snake is designed for clearing 1 1/2" - 2" drain pipes with enough fexibility to allow it to easily pass through curved pipes, quickly clear through bends, and remove blockages. The Open Hook end leads down the pipe to retrieve hair and debris for easy clog removal and drain cleaning.