Genexice Suction Toothbrush Holder - White Do NOT buy from other vendors if you want the original high quality product! Look for "Sold by Genexice, Inc." and buy the original brand. Easy installation without glue or tools via rotate and lock suction technology Suction works on ceramic tile, mirror, glass, acrylic and glossy, smooth and non-porous surfaces Suction does NOT work on dry-wall, brick, wood, marble, porcelain, quarry, stone or any rough, uneven and porous surfaces Suction Cup Diameter: 1.75", Material: Polyurethane