Stainless Steel Waterproof Suction Hooks. Premium grade brushed finish stainless steel prevents corrosion and rust during daily use, resists tarnishing and fingerprints, and is easy to clean. Suction hangers perform well in damp environments. Applicable Surfaces: Works best on smooth, clean, dry, flat, and non-porous surfaces such as glass, windows, mirrors, porcelain tile, glazed tile, acrylic, stainless steel, plastic, and Corian walls. Not suitable for dusty, wet, breathable, uneven, porous, painted, matte, textured, or curved surfaces including painted walls, ceramic, original wood, natural marble, natural granite, mosaic or travertine tiles, plastered walls, lime walls, wallpaper, frosted glass, or over grout lines. Strong Vacuum Suction & Deep Hooks: Suction cup base made of high-quality plastic PVC with a 2-mm layer of soft sticky gum, flexible enough to create and maintain a vacuum seal ("sticky" base is not 3M glue). Suction wall hooks support up to 5 kg, with a deep hook design ideal for hanging towels, tea towels, loofahs, baby bath items, cooking turners, brushes, wreaths, clothes, robes, hats, keys, bags, and more. Removable & Reusable Suction Hanging Hooks: Practical solution for adding temporary utility hooks in bathrooms, kitchens, or on shower glass. Can be removed and repositioned without leaving residue. Ideal for rented homes or dormitories, allowing secure storage without damaging walls. Always wash and dry the suction cup before reusing. Easy Installation Without Drilling: No tools, no glue, no wall damage. Press the suction cup firmly onto the surface and twist the knob cap by hand to complete installation or removal. Follow all steps in the installation instructions and video for best results. For any questions, via the email provided on the packaging.