Iron Man 3, Avengers, Superman, and Teenage Mutant Ninja Turtles Tower Puzzles (Bundle: 4 Items) Bundle of 4 puzzles Iron Man 3 - Tower Puzzle - 50 Pieces Avengers - Tower Puzzle - 50 Pieces Superman - Tower Puzzle - 50 Pieces Teenage Mutant Ninja Turtles - Tower Puzzle - 50 Pieces