With these motorized locomotive sets from Fisher-Price, preschool children can play at loading and unloading goods with their favorite characters from Thomas and Friends. Little conductors can collect characters like Thomas, Peter, and Nia, and combine the sets to create even bigger train adventures in the style of Thomas and Friends. The sets are compatible with all Thomas and Friends tracks, except for the wooden track. Each set is sold separately. The locomotive requires 2 AAA batteries.