Homeself Super Powerful Soap Dish Holder Vacuum Stainless Steel Bathroom Toilet Soap Saver Case Suction Cups for Bathroom & Kitchen,Not Rust (Soap Dish) Suction works best on ceramic tile, glass, mirror, granite, stainless steel, acrylic, laminate and any non-porous surface with glossy finish Suction will not work on wood, stone, sanded tile, porcelain, marble, dry wall & any surface that is bumpy, porous or rough. Innovative rotate and lock suction technology allows this product to install without glue or tools Material: High quality SUS304 stainless steel.Guarantee not rust. Dimensions:12.8cm x 10.5cm x 3cm5.0*4.1*1.2inch,Weight: 155g