Its installation is not that simple. It will require a hole with a total depth of 140 mm and 2 drills of similar length and width, 10 and 16 mm. Because initially the hole must have a width of 16 mm for a depth of 35 mm and then the width of the hole narrows (10 mm for the remaining 105 mm). It may not hold tightly on a wall made of concrete and brick (consider that the system is quite heavy). It is preferable to install it on the floor (marble & concrete) to hold well. If you are not experienced with such tasks, I would recommend finding a professional.