The unique Vacuum-Loc® mounting system ensures quick, simple and safe mounting on the wall without drilling or screwing . Installing the Vacuum-Loc® system is very easy thanks to the pump. The supplied pump sucks the air out of the adapter/wall bracket, creating a vacuum inside. The adapter and accessory are then immediately loadable. The features of the Vacuum-Loc mounting: ✓ For impermeable & uneven surfaces (such as smooth tiles, glass, slightly uneven tiles) ✓ Strong adhesion, load capacity up to 33 Kg ✓ Simple & quick mounting, see also the step-by-step plan and the video ✓ Immediately load-bearing ✓ Easily removable/movable ✓ Reusable as often as you want