Buy a toilet rack with a good suction or a good wall
Glue the glue on the screw.
If you are sure of the location, and those that are no longer moving, you can use the wall, but if you are not sure about the location, or you do not know will not hinder, you put the sucker, and now sucker is very tight, my home It is useful, you buy a little sucker, it is very easy to use, but also move the location
In general, sucker or will be out, with the wall safe.
Sucker or will be out, with a wall safe.