Wall Hooks Self-Adhesive Reusable for Campers (5x - XS 3 kg - Square Matte) Peel off the protective film and stick the hook to the desired place. Then slide your finger over the transparent surface and squeeze out the air. The hook is immediately resilient. The adhesive surface consists of thousands of Nano suction cups that can be used again and again. Peel off the hook from a corner like a sticker. Then clean the adhesive surface under the tap and leave it for 15 minutes. dry. Then it is ready to use again. The rougher the surface, the less load capacity. e.g. wallpaper, concrete, wood, etc. On smooth surfaces, it carries min. The specified weight e.g. plastic, glass, tiles, metal, etc. Ideal in the bathroom (tiles, shower cubicles), kitchen (furniture, fridge) window frame, on room doors or in the caravan / motorhome - even on round curved walls Even after years. Since the Hook has no adhesive, it can be removed and reused without leaving any residue even after years.