Hot Wheels X CrazErasers: Collectible Puzzle Erasers ~ Series #1 (Green Twin Mill, Orange Howlin' Heat) This is for a set of CrazErasers puzzle erasers Style: Hot Wheels (Green Twin Mill, Orange Howlin' Heat) This 2 pack features a green Twin Mill with gray base and an Orange Howlin' Heat with gray base These cars are roughly 1:64 scale and are part of the Hot Wheels CrazErasers series 1 These erasers are perfect for car fans and puzzle enthusiasts