[Reusable Suction Cups]:Heavy duty suction cups are reusable and can be used to mount many items on glass, , tiles, metal surfaces, etc. [Easy to Install]:Window hooks suction cups are easy to install and remove. They 't require any tools. [Strong Suction]:Heavy duty suction cups strong suction to hold items firmly in place. [Multipurpose]:Suction cups are great for hanging decorations, shower hooks, curtains, kitchen utensils, and more. [Durability]:Shower hooks suction cup are made of high quality ABS material, which is durable and can withstand heavy weight. How to use: 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 surface. Then hang your clothes, towels, sponges, bathrobes, bedroom ,loofah,etc. NOTE: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 or wooden door surfaces, etc. :4 Pack Colour:Silver Material:ABS Package Contents: 4 * Hooks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.