Heavy Duty - Bulk 12/5 electrical cable with an SOOW jacket Braided Copper - Built for flexibility and durability SOOW Jacket - Service cord with an Oil-resistant outside jacket Rated for 600V - Intended for indoor or outdoor use, tools, circuits, industrial, data centers, IT installations, generators SOOW wire can be submerged underwater and is flame retardant; therefore, its safe for all indoor and outdoor projects. The thermoset rubber wont melt when it comes into contact with hot surfaces or oils.