Welcome to our store! Size: Each hummingbird decal measures approximately 42 x 32 cm, making it suitable for use on glass panels, patio doors, or windows to prevent birds from hitting the surface. Double-Sided Printing: The hummingbirds are colorful on both sides, allowing the vibrant colors of the window cling to be seen from both the outside and inside. Simply attach them to the inside of the window without the need for glue. Convenient and Reusable: Follow these simple steps for application - 1. Clean the window with a duster. 2. Spray water on the glass. 3. Peel the hummingbird decal from the vinyl backing and place it in the desired location. If you want to move it, simply remove it and reposition it. Material: The bird safety collar is made of high-quality self-adhesive vinyl with double-sided printing. These decals are durable, non-toxic, and odorless. 100% Satisfaction Guarantee: Our customers are our top priority. If you encounter any problems with the product upon receipt, such as damage or incorrect quantity, please contact the seller immediately. We strive to provide you with satisfactory customer service. Thank you for choosing our products!