For the price, I expected a much better and sturdier construction from this company. I can say it is perhaps the worst product I have purchased from Grohe. It screws into the wall with 2 screws (obviously, holes need to be made) and is not completely stable. The piece that holds the shower phone essentially "wobbles" back and forth. Just if you have a Grohe faucet, you will probably need it if you also get the corresponding shower phone to support it. Personally, I would not recommend it. The only positive I give, and 2 stars for the same reason, is that aesthetically it is beautiful, and also once the phone is in, the grip is tight so there is no chance of it slipping or falling.