Excellent construction with quality weather-resistant jacket. It is an extension cord, not a replacement cord. It has a Female 30A socket on one end, and Male 30A plug on the other. They included a very nice Female 30A to Male 15A adaptor.It also came with a thick "hook and loop" carrying strap that has a built in handle making it very easy to store and carry.. It came rolled up in a small coil, and I will tuck it into a spot in my motorhome for when it is needed. The 25 ft power cable that came with my motorhome is just not long enough at times. This takes the worry about not being able to reach a power pedestal.