Decal Collection measures - 14.5" x 15.5" sheet Individual Shell size shown in second picture. ABOUT OUR DECALS • Easy to apply and remove. • Our vinyl decals adhere to most clean, smooth, dry surfaces (ie Walls, Windows, Doors, Glass, Metal, Plastic, Refrigerators, and Finished Wood). • Will the decals damage my walls? Typically No. As long as your wall is smooth, clean and in decent condition the decals will not damage them when removed. IMPORTANT NOTE: Be sure that the wall, room and decal are above 70 degrees when you are applying them. The adhesive on vinyl decals will begin to harden below this temperature. The temperature is only crucial for the first couple of days and once the decal has had time to adhere the room temperature can drop below 70 degrees without problems. If you have any other questions, check out our shop policies or don't hesitate to send a message. Satisfaction Guaranteed. Over our first five years we've shipped over 25,000 decals. In that time we received 4 negative feedback...we believe in good customer service and always strive to meet or exceed your expectations. Thanks!