Waterproof Heavy Duty Adhesive Wall Hooks are made of high quality 304 stainless steel. Resistant to everyday scratches, corrosion, tarnish and rust. Those round rods that hang on hooks use strong adhesive and have a maximum weight capacity of 6 lbs. Widely used sticky hooks are suitable for indoor shower, bathroom, bedroom, kitchen, closet and living room. Hang sponges, towels, loofahs, coats, purses, bags, keys, towels, clothes, hats, mugs and more. Not recommended for hanging fragile, expensive items. Suitable for Different Surfaces Those black sticky hooks are suitable for different surfaces, such as wood, marble, clipboard, tile, glass, plastic, stainless steel and metal. Do not work on painted walls and wallpaper. It will damage the wall. Handy Non-Damage Hooks Those self-adhesive hooks are the perfect tool for places where drilling holes in the wall is not allowed, such as rental apartments, RVs. Adhesive wall hooks are your convenient alternative. Does not hurt the wall. Easy to install and no drilling required Peel and stick it where you want, then press firmly for a few seconds. Installation takes just seconds. We recommend waiting 24 hours before hanging any items on it. When removing, heat the adhesive with a hair dryer and it can be easily removed. No nails or screws needed.