Get 4 vibrant Hummingbird Anti-Collision Window Clings made of durable PVC. These 3D stickers are visible from both inside and outside, preventing bird strikes on glass panels. Easy to apply and reusable. Ideal for room decor and window grilles. Features: 1. What You Will Get: You will receive 4 x Hummingbird Anti-Collision Window Clings or 5 x Butterfly Anti-Collision Window Clings, each sticker offers a colorful vibrant design. 2. Size: The size of each anti-collision sticker is about 30 x 20cm, the proper size for use on glass panels, patio doors, or bay windows to help prevent bird strikes on window glass. 3. Double Side Printed: Anti-collision clings are brightly colored on both sides, the bright colors of the window clings are visible both from the outside and inside, apply them to the inside surface of the window, do not need adhesive. 4. PVC Material: Bird anti collision window clings are made of quality PVC with duplex printing, which is durable, non-toxic and has no bad smell. 5. Convenient And Reusable: Step 1, clean the window with a duster, Step 2, spray a mist of water on the glass, Step 3, peel the hummingbird window cling from the backing and place it on the window in any design you like. If you want to rearrange it, simply peel it off and move it around. Specification: Material: PVC Color: Multicolor Product Size: 30 x 20cm Product Weight: 68g, 85g Package Included: 4 x Hummingbird Anti-Collision Window Clings or 5 x Butterfly Anti-Collision Window Clings