Description These anti-collision window decals are made of PVC material, which are visible from outside and inside. Simply paste these stickers onto the window's surface, and it does not need extra adhesive. They are mainly used for preventing birds and people from striking the transparent windows. Features - Color: As shown -Material:PVC - Size: 12.70X9.00X0.10cm/4.99X3.54X0.04in -Cling design, super easy to apply and remove without any residue, no damage to windows surface. Also, it can be reused if not be damaged or smudged. -With special design it will show a colorful visual effect when sunlight hits the cling after installation. -Creative moon and cat design allows these stickers to bring a unique decoration to your Windows. Perfect for decorating a room. -Our window stickers are made of safety materials and have a glue-free design that strongly adheres to the window and is easy to peel off. -Each window cling features special material to reflect sunlight and serve as a glowing warning sign for birds. Packing list2 x window stickers