4 AWG 3 conductors, Nassau’s SO Cable is perfect for use as portable electrical power and portable control cable. It can be used for ground test or motor leads. SO cable can also provide heavy-duty service for industrial tools, portable lights, battery chargers and equipment exposed to oils, solvents, flame. EPR (Ethylene Propylene Rubber) insulation. CPE (Chlorinated Polyethylene) jacket. 0.95" nominal outside diameter.0.05" insulation thickness. 70 Amps per conductor. Conductor stranding: 133 strands per conductor. Bare copper stranded SOOW Cable. Order Carefully No Returns.