Super Suction and Long-Lasting DurabilityThe suction cup hooks are made of high-quality ABS plastic and rubber, which can withstand a maximum load of 15 pounds and be used for several years for several years. No DamageNo drilling it prevents any damage to the permanent structure and provides a flexible relocation location. Just adsorb the suction cup hooks on the tile wall. No Indentation If you need to change the use position of the product, you only need to lift the suction hook, then the suction cup hooks will fall form the wall to ensure that they will not leave indentation and wear on the wall. How to UseBefore installing the suction hook, the surface must be clean and dry. Firstly, the suction cup must be firmly pressed for 3 seconds to squeeze out the air, and then the pull hook must be pulled down to lock it on the wall surface. Then hang your clothes, towels, sponges, bathrobes, bedroom dressing, loofah, etc. Using Tips and AttentionThis item is a pack of two hooks that work only on non-porous, smooth surfaces such as polished ceramic tile, mirror, glass window, polished stainless still wall and plastic board etc, and won't work on any porous, bumpy, rough or textured surfaces such as rough coating surface, unpolished marble or wooden door, rugged porcelain surface etc.