delivers what it promises. It is fixed and can not be taken out of children. With a plug, it can also be resolved without problems - much better than the FRAMEWORKS "Steckdosenschutz", where you have to turn during insertion - the dissolves like to pulling out the plug with from. Disadvantage is that you have to watch that you do not forget to use the socket insert the protection. And of course, this protection is only suitable for outlets that are needed infrequently. Where regularly drinsteckt a plug, I have opted for the "glue parts" if our child then but times pulling the plug, so then is still a protection in the socket.