Strong and Durable: Our hooks are made of user-friendly silica gel and durable clear plastic. Different from other inferior products, our products can bear a maximum load of 3 kg. Smooth wall hooks: suction cup hooks work better on ceramic tile, glass, mirror, granite , stainless steel or any flat, non-porous airtight surface. Wide Application: Ideal for bedrooms, bathrooms, closets, cabinets, kitchen, office, cabinet and many more places to save space and neatly organize your favorite things. Easy to install and recycle: just peel off the cover on the back of the hook, then press the hook on a smooth, dry surface, squeeze the air out. Adhesive to the wall easily, without any damage to the wall. 6 pieces Installation instructions Step 1 Clean the surface before installation. It should be dry and clean. Step 2 Remove the thin film of the suction cup, put on the suction cup, and press the top firmly to squeeze the air out of the suction cup ( hold for at least 3 seconds) Step 3 Remove the padlock. Please note: press the suction cup firmly onto the surface to squeeze the air out. If you want to remove or reposition, just pull the hook up and release the pressure, then it can be easily removed without leaving any brand. Please remove the hooks to reinstall them when they are used several months later, to prevent them from falling off due to air leakage . When the suction cup loses its stickiness or becomes stiff, simply soak the suction cup in warm water to soften it back to normal.