Not useful for all sockets!

There are such adapters of several brands, but in this one you have at least thought about it, the average Schuko to rotate 90 degrees, so that an angle connector (as most are today indeed) not covering one of the 2 Euro cans.

The connector of the adapter itself is designed so that the adapter is plugged in normal doses transversely mounted, so to say, in multiple doses, the horizontal neighbor cell (s) covering. For vertical multi-dose and vertical switch / dose combinations, he must be used optimally.
After the grounding contact on the screen is good to see, make sure better advance exactly whether this adapter (if in power strip or -Outlet) also corresponds to your expectations.

+ Good quality and design
+ The registration of 3 doses for the connector and the contacts are good.
+ The correct way stiff and thus also secure child safety device is for one or the other possibly a good addition; from dust protects the plug anyway.