(2) Please be sure to take a look at the installation tutorial before installation, half of the patch is stuck on the base, after fixing the position on the wall, remove the towel rack, squeeze the patch on the wall, and discharge the air in the patch before you can buckle the towel rack and use it. (The installation wall must be flat and solid glass, ceramic tile and other walls.) It should not be used on uneven and unstable walls, such as lime walls, painted walls, wallpaper and other walls.