●Waterproof and heavy duty for long-term use ●The end of the plug covered with flexible sleeve protects the plug from loosening when plugged into the socket for a long time ●The sleeve also protects the plugs from electrical leakage and short circuit current caused by the contact of metal tools and wires ●Length 6-inch. Pack includes 2 cables (1 black & 1 red) ●Made in California, if you have any suggestions, please let us know and we will upgrade the product as soon as possible