Product Description Material: Acrylic Size: 20*11.5*21 cm Color: transparent Package content: 1 * Hanging bird feeder 1.High-quality shell: made of high-quality transparent acrylic material, containing ultraviolet stabilizer, which helps to maintain transparency for a long time and prevent yellowing; weatherproof design is suitable for various weather conditions. 2.Expandable feeder tray: Designed with a removable feeding tray, you can easily and conveniently clean the bird feeder and refill the feeder withsemen without having to remove the entire feeder. Just pull out the tray, fill it up and push it back. 3.Powerful suction cup: The powerful suction cup can be firmly fixed on your window, and can remain in place even in extreme weather; it is also easy to install on transparent windows or remove it in other locations. 4.Anti-mold system: The bird feeding station is equipped with drainage holes to keep your bird species dry and prevent mold. Both the detachable bowl and the main food dispenser have drainage holes, so your bird food stays dry in rain and snow. 5.The ideal gift: Enjoy outstanding clarity and unobstructed bird's eye views from your home. The way you and your family observe wild birds up close in the living room, hobby room or bedroom.