The Pennington Window Hook helps hang bird feeders, hummingbird feeders, and backyard decorations. It also allows you to view wild birds and hummingbirds from their feeders. Its matte black color coordinates nicely with any bird feeder, wind chime, or backyard decor item. Its heavy-duty suction cups allow users to hang the feeder from any window or other smooth surface. It helps attract various birds and hummingbirds. This window hook is made using weather-resistant metal and durable plastic. It can hold up to five pounds.