Adhesive Pads Only Fit For Any Non-Porous Smooth Flat Surface . Ceramic Tile, Glass, Mirror, Granite, Stainless Steel, Acrylic, Laminate And Any Non-Porous Surface With Glossy Finish; Not Work Over Grout Lines Or On Porous Surfaces Such As: Wood, Unfinished Marble, Granite, Porcelain, Wallpaper, Natural Stones (Such As Travertines), Painted Wall Any Surface That Is Bumpy, Etc.. | | Feartures - Dimensions : 5-1/4 " L4 " W1 "H . The Suction Cup Diameter Is 2-3/4 Inches . Sope Dish Wires Is Made Of 304 Rustproof Stainless Steels And Suction Cups Mounted Soap Dish For Shower Is A Perfect Addition To Your Bathroom Decor . | | No Need Drill Or Tools - This Prevents Any Damage To Your Permanent Structure And Also Allows For Flexibility To Relocate . Simply Place Suction Cup Basket On The Tile Wall , Twist Lock !The Support Function Of The Soap Box Is Based On The Principle That The Rotating Part Forms A Suction Cup Vacuum. | | Convenient Holder - Powerful Su.