theBathMart Power Lock Suction Cup Towel Holder Ring for Bathroom & Kitchen [No tools, No Drilling] EASY: Fast installation, attaches directly to outside surface - No tools required, No Drilling needed CLEAN: Self-draining storage to keep your towel free of mildew BEST: Suction works best on ceramic tile, glass, mirror, granite, stainless steel, acrylic, glossy laminate and any non-porous surface with a glossy finish ANYWHERE: Works with any smooth, flat and non-porous surface. Avoid grout lines for proper placement WARRANTY: comes with 12 month warranty, 30 days money back guarantee