Quality material - the hooks are made of 304 stainless steel which is very stable and corrosion resistant, and 3m of adhesive tape which demonstrates the best strong adhesion and waterproof. Wait 24 hours before placing items. Easy to install or remove: No need to drill, just peel off the backing of the adhesive and stick the hook on the smooth surface; installs in seconds. They can be removed simply by using a hair dryer to heat the self-adhesive. Sturdy and durable: Waterproof and oil-proof, high and low temperature resistance allow it, Convenient, strong pressure, moisture-proof, no trace. Wide application scope：This Self-adhesive hooks are suitable for smooth walls, such as glass, mirrors, tiles, etc., and can also be used in kitchens, bathrooms, offices, etc. Our product uses a coating adhesive and has excellent adhesion. After testing, this hook has been proven to hold up to 5kg of items and won't fall off. Our product requires no drilling, no glue, no tools. Just peel off the protective membrane on the back, install in 30 seconds and there's no residue. So you don't have to worry that the walls you love may be damaged due to lack of space. How to use: 1.Remove the protective film from the sticker. 2.Heat the sticker with a hair dryer to increase the viscosity. 3.Stick the hooks on the correct position and press firmly. 4.Please wait 24 hours before hanging items. 5.Tips: You can use a hair dryer to heat the glue if you want to give up these products. Note: Self-adhesive hooks can only be used on smooth surfaces such as glass, wood, tiles, mirrors, cooking surfaces, etc. Do not attach to slightly chipped and rough walls. Package Included: 20 x 3M Adhesive Hooks lucky meet Note: The data are all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.