With fine craftsmanship, look chic and decorative, well decorated your window. This beautifully patterned glass sticker can both decorate and protect birds. They are durable for a long time. They are easy to remove and peel without damaging the glass window. Features - Color: As Shown- Material: PET- Size 1: About 10.00X10.00X0.10cm/3.93X3.93X0.04in- Size 2: About 9.00X9.00X0.10cm/3.54X3.54X0.04in- Size 3: About 8.00X8.00X0.10cm/3.14X3.14X0.04in- These stickers can help birds identify the glass and reduce bird collisions. Protect birds. - You can also put them on glass doors to remind people and your pets not to bump into them. - These decals are designed with creative materials, which can grab the sunlight and turn it into a beautiful view in your room. - They can be used inside and outside your Windows, to meet your different needs, very convenient to use. - Just peel off the back and apply it to the glass window. No glue is needed. Removable and practical. Packing list: 12 x Anti-Collision Window Clings(Star)