Usage Tips:Material - The handle of the suction cup is made of premium PVC and ABS material, which is durable, reusable and waterproof. In the bathroom and other humid environments can also be used.Reusable - the adsorption membrane has memory. When you change place to install it, you just need to wash the suction cup, it can be reused after drying.Design - Portable stand safety handle and vacuum pressure of suction cups provide extremely powerful gripping force Lock vacuum firmly, can work on smooth, non-porous surfaces.Easy to Install and Remove - No drilling, no tools, no glue, the tub handle is easy to install and remove. Will not harm tiles, porcelain, glass, metals.Application-- suit for tile, glass, mirror, frosted glass and so on. Also a good choice to use as cabinet, window, refrigerator door handle. The non-slip grip allows parents and child to take regular steps in and around the tub and provides more safety for your family. (zhongchengdaye)