Material: Our adhesive hooks are made of high quality sandblasted aluminum, which is resistant to corrosion, rust and scratches, ensuring high strength and durability for indoor and outdoor use. Design: The hooks modern, sleek and stylish design is perfect for most home decor, and the non-marking, punch-free design makes it very easy to install. Load capacity : 3M hooks are backed with 3M adhesive stickers, which are very sticky, waterproof and moisture resistant, providing the best possible adhesion, making these sticky hooks particularly durable. Maximum load capacity: 4kg Installation: Peel off the self-adhesive sleeve and stick the hooks on a smooth surface, press and hold for 30 seconds to ensure the hooks work properly. Self-adhesive hooks can be stuck to most smooth wall surfaces such as tiles, wood, metal and marble. (Not recommended for use on painted walls, limestone walls or wallpaper walls with poor adhesion, otherwise the hooks will come loose) Applications: The hooks are ideal for all uses in home, such as hanging clothes, hats, bags, pants, towels, keys, kitchen utensils, brushes, etc. They can help keep your room neat and clean and save space. Quantity shipped: 4 pieces