Attention must follow the user manual

These tables are handy hooks on the walls where it is difficult to make a hole, such as concrete walls. However, we must follow the instructions, namely adhesive tabs let stand one hour on the wall, having strong support 30 seconds before setting the table, otherwise it ignores the table and falls .
Full instructions can be found on the manufacturer's website and clarify the importance of this detail. I tested and I confirm that without this "small detail", cadres do not take more than 15 minutes.