Genexice Chrome Towel Bar with Rotate & Lock Power Gel Suction Cups 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. Innovative rotate and lock suction technology that installs without the use of glue or tools Suction works on following surfaces: ceramic tile, glass, mirror, granite, stainless steel, acrylic and laminate NOT recommended surfaces: stone or sanded tiles, porcelain, marble & any surface that is bumpy or matte finished Total Length: 22", Bar Length: 18", Suction Cup Diameter: 2.5" / Material: Chrome, Polyurethane