【WATERPROOF HOOKS】The suction cup hooks can hold up to 5.0 kg and are waterproof, so they can be used in wet areas such as bathrooms and kitchens. The shower hooks are the best accessory holder for your towel, bathrobe, loofah, and other bathroom or kitchen items. 【SUITABLE SURFACE】Please check your wall type before purchasing this product. Only suitable for all NON-POROUS, SMOOTH, AND FLAT surfaces. Ceramic tiles, glass, mirror, granite, stainless steel, acrylic, laminate, and any non-porous surfaces with a glossy finish; DOES NOT WORK over grout lines or on porous surfaces such as: WOOD, unfinished MARBLE, GRANITE, porcelain, wallpaper, natural stones, painted walls, and any uneven surfaces etc. 【EASY TO INSTALL】No tools, screws, or drilling are required to use the suction cup. Just choose a smooth surface, twist the knob, and you're done in no time! If you need to remove it, simply rotate it counter-clockwise. Easy to install and never falls off, our heavy-duty shower suction cup hooks allow you to attach in any direction without worrying about bending. 【DURABLE AND IDEAL HOOK】Multifunctional hook made of vacuum-plated ABS that resists daily scratches, corrosion, and tarnishing. And it is waterproof and can be used in damp places. Can hang almost anything: towels, loofahs, bathrobes, squeegees, kitchen utensils, etc.