Material: hook using the original German rubber TRU + PU, reusable and more stable than similar products. pu is a relatively soft rubber, can automatically fill within 1mm rough surface. Appearance structure: The appearance of the suction cup hook is made of abs, surface plating material. Long service life. Waterproof, moisture-proof and anti-smoke. Easy to Install:Before installing the suction hook, the surface must be clean and dry. Just lift, push in and lock. No screws, no nails, no glue, no tools required. This suction cup with hooks is easy to organize and store in apartments, school dormitories, and offices. How to use:Before installing the suction hook, the surface must be clean and dry. First, the suction cup must be firmly pressed for 3 seconds to squeeze out the air, and then the pull hook must be pulled down to lock it on the wall surface. Then hang your clothes, towels, sponges, bathrobes, bedroom dressing,loofah,etc. NOTE 1 ,The vacuum hooks cannot be used on any porous, uneven, rough or textured surfaces, such as rough coated surfaces, travertine tiles, porous tiles and unpolished marble or wooden door surfaces, etc., Note.2:If the hook can't be sucked up, we can wash it with water, the surface of the rubber suction cup, and then use a hair dryer to dry the rubber to soften the rubber before use. The effect will be better! We are striving to provide high-quality bathroom towel hooks and excellent customer service. Please feel free to contact us if you have any questions about suction cup hooks. After purchasing our products, you can enjoy a 180-day return service and a 365-day warranty., Weight: 0.095 pounds, Manufacturer: N-S