Warranty: 30 days money-back & 12-months warranty, BUY WITH CONFIDENCE. Best Customer Service: If have any problems with our products or service, kindly please feel free to contact us, we will response and handle quickly. The Advantages: Heavy Duty: max bearing 22.1lbs (10kg) weight per adhesive hook. Waterproof Wall Hooks: waterproof, oil proof, moisture proof and heat resistance. Seamless Sticky Hooks: there won't be any glue mark left once you tear it off. Wide Used Door / Board / (Frosted )Glass / Ceramic / Metal Surface / Non-painted walls / Other flat smooth and gloss surfaces. How to Use? 1. Clean the place surface where you want to paste the hook away from oil/ dust/ water. Do keep dry before sticking on. 2. Peel off the cover starting from the bulge and make you not touch the adhesive surface. 3. Press the basic of the hook to touch steady from middle to edge, remove air, make sure the basic of the hook fully attached to the surface. 4. Test if it is really stable enough with your hand and then hang things after hours (12 hours later will be better). Important Tips: 1: Normally on the smooth tile surface, this hook can hold up to 22lb/10kg. But we'd like to suggest no more than 13.2lb/6kg for holding a long time. 2: Do not use it at temperatures above 178℉. 3: Please clean the adhesive surface with water if it has dust covered before reposition the hook. 4: Please do not hang fragile goods or dangerous goods on it!