PRODUCT FEATURES : No need to drill holes; waterproof and easy to hold mops, brooms, toilet brushes, etc. Large load-bearing capacity; easy to take away. HOW TO USE : 1. Thoroughly clean and dry the contact surface; if needed, use alcohol to clean dirty glass or ceramic surface and dry it before sticking. 2. After removing the outer film, stick the traceless sheet on the target position and pull out the holder from the slot, from left to right. 3. Use your hand to exhaust the air from the middle outward to make the traceless sheet completely firm. 4. Align the holder with the slot and install it from right to left; hang articles only after 24 hours of installation. \n APPLICABLE TO smooth hard surfaces without bumps, such as wooden surfaces. mere suraces, stainless steel surfaces, plastic surfaces, ceramic surfaces, glass surtaces, erc NOT APPLICABLE TO Earth wall, wallpaper, wet surfaces, ageing surfaces, uneven surfaces, rough surfaces, porous surfaces, etc.