Viproo Plastic Bathroom Shelf Kitchen Storage Box Organizer Basket with Wall Mounted Suction Cup (Green) Dimensions: 10.2" x 4.7" x 2.76", Suction Cup Diameter: 2.5" With two suction cups, stick tight and strong cups Perfect for cosmetic, bathroom products and other small household items. 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 stone, wood, sanded tile, porcelain, marble, dry wall & any surface that is bumpy, porous or matte finished