*Made of good quality materials *Lift the hook or use a flat plate to release the suction cup with no sticky residue or stains. *No need extra tools like glues, screws or nails, just a few seconds to finish installation. *It's using high-strength plastic PVC material and high-tech locking technology which is environmental and aesthetic that will not turn yellow or reduce adhesion over time. *The suction hooks can securely stick on sashes, mirrors, glass, metal or any other non-porous surface, it can meet your different needs that is very convenient to organize and store bathroom, kitchen, bedroom, office., Manufacturer: SEVEQIS