Description “Window Plant Shelf with Suction Cup: The Perfect Way to Keep Your plants safe and healthy!” With the Window Plant Shelf, you can put your plants on display by turning your windows into a mini greenhouse. It's perfect for indoor and outdoor use. The Window Plant Shelf is made of a durable, lightweight, non-warping material that is easy to clean and will not rust. The shelf has a suction cup that is easily attached to any window. The Window Plant Shelf with Suction Cup is a great way to add a touch of color and personality to your glass bay window.The weight capacity of each shelf is dependent on the size and weight of the plants it holds. Each shelf comes with four suction cups that make it easy to attach the shelf to your window frame. Clear Shelves - Various Sizes - Window Attaching or Mirror Attaching via Suction Cups The shelves can hold light weight items. 3x3 = 1 lb or less 6x3 = 1 lb or less 9x3 = 1 lb or less 12x3 - 1.5 lb or less 5x5 = 1.5 lbs or less 10x5 = 2.5 lbs or less 15x5 = 3 lbs or less 20 x 5 = 3.5 lbs or less 4x4 = 1 lb or less 8x4 = 1.5 lb or less 12x4 = 2 lbs or less 16x4 = 2.5 lbs or less 20x4 = 3lbs or less 24x4 = 3.5lbs or less