Bought to plug in my computer equipment I acquired this extension-socket block for its possibility of screwing to the wall. So my setup is now more "clean". Quality is at the appointment. Solidity, easy rotational adjustment, easy insertion of the catch in the bar. She pays but no comparison with "chinoiserie" cheap as found elsewhere. In short do not hesitate if you find this kind of product. Amazon was the cheapest on this one !!! Seen at the concurrency of more than 30 euros !!!