Soft drawn, annealed, bunch stranded 100% copper conductors offer maximum flexibility and amperage transmission Low Profile jacket lays flat and out of the way for safety and appearance Black Cord and Ends blend or disappear into the background making it ideal for tradeshows and conventions where discretion is needed Heavy duty flexible jacket provides outstanding flexibility Our 15A-125V (NEMA 5-15) heavy duty plugs and connectors are molded on with large strain reliefs that prevent the ends from pulling away from the cord body