The window plants shelf high quality acrylic material. Very sturdy and . Crystal clear. Super strong cup suction and load-bearing leg, the plants shelf would be very stable on the window. The wall shelf with cup suction would be used as a plants shelf on the window. You can put growing Herbs, microgreens, succulents or other potted plants. Except that, you can install the wall shelf in any wall which is smooth. You organize things on the shelf, such as toiletries, digital clock, speaker, camera, picture frame. Clean the window's . Slip the cup suctions into the holes of shelf. Keep the plant shelf horizontal by the level. Firmly push it to activate suction. For the leg, you should slip the cup suction into the leg holes. Firmly one the wall and firmly another the bottom of shelf.