Rotational On-Off Steckdose has a opening hole that rotates 45 degrees which acts as a switch to turn on and off the flow of the electricity. User can turn the steckdose and use electricity. After usage, user can block off the flow of the electricity by rotating back the steckdose. It is a great advantage that the flow of electrictity can be cut off even if the steckdose is plugged in. (You do not need to plug off the steckdose and rearrange the wires after using electrical appliances!) A spring is installed inside the steckdose so that it can always remain in an off-mode. To the great advantage of having the spring, it brings greater safety for everyone as the steckdose is always turned off when it is not plugged in (when it is not in its usage).