FECA FE-B5005 No Drill Powerful Suction Cup Towel Ring Holder for Bathroom & Kitchen Marble Tile In Chrome Finish, Suction towel ring perfect to mount on side of farmhouse kitchen style sink or waterfall island countertop with non porous surfaces Important: suction cup will only mount on non-porous, smooth surfaces such as glass, mirror, polish stainless Steel/metal, plastic board, finish marble, Polished tiles, etc for tight vacuum seal Damage free: no nail, no drillling installation. Adjustable: easily adjustable and reusable if needed in future to different position Built to hold: push and lock industrial suction to hold up to 4pound Waterproof: made of abs plastic. 100% waterproof