Spirals Plug / Plug

There are many problems during the using process of plug. Especially, the wire behind the plug often brings trouble and hidden danger to the user. For example, the user may be stumbled by the wire or the wire is not long enough for use. The spiral plug overcomes the problems above by a local modification to the wire. Part of the wire is designed as the spiral wire of telephone, which providing a buffer zone to relieve the troubles.