Umbra Flex Adhesive Soap Dish Soap dishes tend to pool water, with the Umbra Adhesive Soap Dish you don’t need to worry because the integrated drainage holes prevent water from collecting at the bottom of the dish. Easy to install, Flex Soap Dish includes non-damaging, waterproof adhesive strips that can be applied on various surfaces such as tiles, dry wall, concrete, etc. (does not work on porous surfaces). Measures 2.5 x 4 x 2 inches (5.5 x 10.5 x 6 cm). Part of Umbra's Flex Adhesive Bath Collection. * Non-Damaging Adhesive Installation: Features a non-damaging adhesive backing which can be applied on various surfaces such as tiles, dry wall, concrete, etc.