1、Super strong lock hook made of eco-friendly rubber suction cup and durable plastic, surface plating, waterproof and rust-proof, environmentally friendly, non-toxic, tasteless. 2、Strong suction, no glue, can accommodate items up to 5kg, can be reused, you can easily clean and restore the hook without leaving unsightly glue residue 3、Easy to install, no drilling required, no screws, can be disassembled and installed by hand in seconds. 4、Vacuum suction cup hooks meet all our storage and hanging needs, useful in bathroom, kitchen for bathroom, hanging towels, bathrobes, kitchen utensils, clothes, hats,keys, bags, jackets, etc. 5、This powerful vacuum suction cup hook only works on smooth non-porous surface such as polished ceramic tiles, mirror, glass window, polished stainless steel wall and plastic panel etc.