Transparent material: The window bird feeder is made of high transparent acrylic material, which is strong and durable, waterproof and anti-corrosion, and the transparent design allows you to observe and feed the birds clearly. . Two ways to use: You can hang it on the tree with the hanging chain, or you can also use a strong suction cup to fix the bird feeder on the wall or window. . Intimate design: The refillable bird feeder is equipped with a plastic tube that can provide standing support for birds to facilitate feeding, and the top cover and sides can protect birds and seeds from rain. . Size and package: This bird feeder includes 1pcs window bird feeder, 1pcs suction cup and 1pcs chain. Its size is 137.512.5cm, suitable for small birds. . Perfect gift: Bird feeders on the windowsill are the most intimate gift for birdwatchers and bird lovers. It is suitable for all ages and brings a happy time to children and the elderly. .