"Easy to Install and Remove: NO TOOLS, NO DRILLING, NO SCREWS, NO HOLES- With the suction cup technology, the soap dish brings no damage to your permanent structure and allows for flexibility to relocate. Allow to remove easily without leaving marks or sticky residue .Warm Tips - This suction cup soap basket works best on NON- such as ceramic tile, glass, mirror, stainless steel, acrylic, etc. ATTENTION - this suction cup will not work over grout lines or on porous surfaces such as: WOOD, unfinished MARBLE, GRANITE, porcelain, wallpaper, natural stones (such as Travertines), painted wall & any surface that is bumpy, etc.the soap holder is made of food grade 304 stainless steel.Size: The soap/sponge holder 5.75"" x 2.25"" x 2.5""Wire opening design of the sponge drying rack holder provides maximum airflow, allowing water to drain quickly, preventing mold and bacteria from breding in your sponges and scrubbers for a healthier, more sanitary kitchen. The suction soap holder suitsi in bathroom & kitchen , perfect for soap , sponge storage."