Large bird feeder:21x13x10cm/11.8x5x4inch (LWH) Transparent Design: Transparent sticker easy to observe the bird’s nest from inside without disturbing the bird. The transparent sticker has a protective film, please tear it off. Remove the protective film when using. Suitable for home windows. Attract a variety of birds to inhabit. Makes bird watching fun and easy from the comfort of your own home while relaxing in your favorite chair, working at your desk, kids and pets also love watching birds sitting inches from their face . < /p> Easy to install: 2 powerful suction cups can securely attach the birdhouse to the glass, which is convenient and quick to install, without any tools. Make sure your birdhouse stays securely attached to your window, even in extreme weather conditions. to any window (without a screen). If you are worried about insufficient suction power of the suction cup, there is also a strap on the top of the birdhouse, you can use this birdhouse in your garden by