(2) Please Pay Attention to the Installation. Please Watch the Video before Installation. the Wall Should Be Flat and Solid Glass Tiles, Etc. It Cannot Be Used on Uneven and Unstable Walls Such as Painted Walls, Wallpaper and Lime Walls. After Gluing on the Wall, You Need to Wait for 3-5 Days, Nail-Free Glue Completely Dry before Using!