iPegtop Three Tier Stainless Steel Suction Cup Towel Holder Bar Towel Rack Hanger for Bathroom Organizer Rust-proof Suction works best on ceramic tile, glass, mirror, granite, stainless steel, acrylic, laminate and any non-porous surface with glossy finish KEEP IN MIND THIS SUCTION WILL NOT WORK ON POLISHED TILE,POLISHED TILE IS POROSITY. Innovative rotate and lock suction technology allows this product to install without glue or tools Press suction cup button and listen for 'click' to know suction is activated Dimensions:45 x 15 x 6cm(17.73x5.9x2.36 inch)