Note: Suction cannot be applied to grout lines or porous surfaces such as wood, porcelain, marble, wallpaper, natural stone (travertine, etc.), painted or textured surfaces ● Constructed to prevent rust and rust. Suction cup hooks are chrome-plated ABS plastic ● EASY TO USE: Rental an apartment where people move frequently. Simply remove the suction cup and lift the towel hook. Within a few minutes, put it in a new place ● NO TOOLS, NO DRILLING, NO SCREWS, NO HOLES: The suction cup technology makes it the perfect towel rack. Simply place it on a smooth surface and apply pressure and turn clockwise ●Super Suction: Our hook hook has strong suction ability, Manufacturer: Zeizafa