Two sets of window stickers: There are two sets of stickers, one is a bird, the other is a circle, you can combine them into beautiful shapes as you like Transparent matte design: Specially designed reflective material in each window reflects the sun's ultraviolet light as a brilliant warning sign for birds. To humans, they appear as matte or etched glass Beauty and practicality: Big Bird window stickers have various shapes of cute birds, which are tender and can attract people's attention; Designed with reflective material on the surfaces, they can reflect the sun's UV rays and warn birds Disassembly and assembly at any time: Clean the glass and spray a mist of water on the glass, then remove the anti-collision window film and place it on the glass; If you want to rearrange the window stickers, just peel them off and move them around so they don't leave ugly marks Wide range of uses: Bird warning collision stickers are suitable for home, shops, classrooms, offices and other places, they are translucent and can be stuck on windows, glass doors, tiles and other smooth surfaces