Avengers Assemble! Bring the Avengers into any room with these peel & stick wall decals. It Consists of 28 wall decals.These cool wall decals of Captain America, Iron Man, the Hulk, Thor, Black Widow, and Hawkeye are the easiest way to delight and impress Marvel fans of any age. The decals are completely removable and repositionable, and can be moved around as often as you like without damaging the wall or surface on which they're placed.Before you kick things into high-gear in your child's space, make sure your walls are clean and paint is fully cured. Allow at least two to three weeks of dry time before applying RoomMates decals.Before you kick things into high-gear in your child's space, make sure your walls are clean and paint is fully cured. Allow at least two to three weeks of dry time before applying RoomMates decals.