23.5 inch x 40 inch Simply Peel and Stick! Removable & Reusable! Decorate any Transformers fan's space with this huge wall decal of Optimus Prime from Transformers: Age of Extinction wall decals. Like all RoomMates, this wall decal is effortless to put up, and will adhere to any smooth surface without any fuss, mess, or damage. They can be repositioned over and over again without ever losing their touch, but won't peel away the paint or cause any other issues in your child's room.