No Screws. Hassle-Free Installation: No more ugly holes in your walls! The Suction Cup Hooks for Glass Window are removable and repositionable, and won't leave any marks or sticky residue. Caution: The suction cup hooks for shower only works on Glass, Mirrors, Glossy porcelain tiles, Acrylic/Plastic shower snserts, Smooth stainless steel, Quartz, Laminate, and other smooth and non-porous surfaces.
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