TrackMaster motorized engines from Fisher-Price have been redesigned so you can experience the Island of Sodor like never before! With enhanced speed and performance, these engines go faster and climb steeper inclines, driving Thomas & Friends to greater speeds, taller heights and bigger adventures! Flip the switch and watch Spencer race along on another exciting journey. This striking silver express engine is the perfect addition to your collectable, expandable, motorized TrackMaster world! Requires 2 AAA batteries.