The epic worlds of Transformers robots and Hot Wheels® cars collide with the Hot Wheels® x Transformers Twin Mill or Bone Shaker converting action figure! The 5-inch (12.5 cm) figure converts from robot action figure to car mode. With intricate poseability and attachable flame accessories, these action figures make an awesome gift for boys and girls ages 8 and up or anyone who collects Transformers toys or Hot Wheels® toys.