This is a design for a socket that pulls in any extension cords. I think this is a great design for a few reasons. First of all, the design is sleek, small, and camouflages into the background of the wall it is in. Secondly, I hate seen extension cords everywhere. It makes the house look messy, and unorganized. I'm not sure exactly how it works, but I would love to own a few in my house.