This black connector set includes one male and one female connector, rated for up to 350 A and compatible with 1/0 to 2/0 AWG cable. Precision-machined brass parts and a single oval-point screw provide the cable connection, while the cam-action design pulls the connectors tightly together. Heat- and cold-resistant covers have no metal liner to rust or corrode, and installation uses a 1/4-inch Allen wrench.