Octopus suction cup principleOur suction cup is bionic octopus suction cup design so that the hook is fixed on the wall, stable and does not fall off. Compared to other hooks, we don't need nails or glue and leave no marks on the wall. Waterproof and oil-proof: Our suction cup hook is made of Premium quality ABS plastic, eco-friendly and strong. The hook is waterproof and oil resistant, suitable for use in the bathroom, kitchen and other places. Installation in 1 second and unlimited reuse - Our suction cup does not require nails or adhesive glue. You just need to press the hook against the wall to remove the air from the suction cup, then twist clockwise to complete the installation. Twist counter-clockwise to remove. Super suction power: The super suction power of the suction hook can withstand 5 kg weight after installation correct. Whether used as a towel hook, coat rack or other purposes, it can be competent. Wide CompatibilityOur suction cup hooks can be attached to smooth, non-porous labels such as windows, mirrors, glass, tiles, metal, wood, etc. Do not use on irregular, porous, curved or rough surfaces. You can use this multi-function suction cup in the bathroom, kitchen, office, bedroom, hotel or store.