Product Description -------------------------------------------------------Professional Organization/-------------------------------------------- About MaxHold Suction System MaxHold is the market leading in suction cup of bathroom accessories and kitchen accessories. Based on patented technology, MaxHold products are innovative to use industrial rubber instead of PVC OR TBR. The rubber has features of water proof, oil resistance, cold and hot resistance. Modern design looks stunning with any bathroom & kitchen decor. Amazing Holding Power Modern design looks stunning with any bathroom & kitchen decor.Supported by patented suction system, each MaxHold suction cup could load not only 10lbs, not only 20lbs but more than 30lbs, which has been proved by the SGS test organization. MaxHold towel ring Packing List:1 suction cup1 stainless steel ring1 instructions booklet Dimensions： suction cup diameter - 7.3cm stainless steel ring diameter - 16cm Features: STRONG LOADING ABILITY - maximum loading is more than 30lbs.EASY INSTALLATION-no tools, no drilling, no screwing.NEVER RUST-made of SUS304 stainless steel and plating ABS plastic suction cup.REMOVABLE-reuse and no surface damage. Caution: Suction cup works best on smooth and non-porous surface -SMOOTH glazed tile / glass /steel/mirror/PVC surface/painting surface.Doesn't work on porous surfaces-concave(convex)/cambered/porous tile/rustic tile/mosaic tile/travertine tile/porous marble/concrete and lime wall surface. Installation: Clean - clean the mounting surface thoroughly.Press - press the flat rubber base to exhaust the internal air lightly.Position - position the metal part with the suction cup.Twist - twist the knob clockwise to lock until fully tight. Simple stainless steel towel ring is rustproof and waterproof. It is perfect to keep your washbasin clean and organized. Modern silver design looks stunning with any bathroom & kitchen decor. No drilling suction cup has no damage to your wall, and it is removable and reusable.