Make your Thomas Friends TrackMaster world bigger with this Motorized Diesel engine Push Dodge along or flip the switch to watch him chug along by himself. It"s easy to put a favorite story in motion with Trackmaster playsets and accessories. Requires 1 "C" battery (batteries not included) Dimensions: 5"L x 1.5"W x 2.25"HSmall parts not recommended for children under the age of 2Ages 3 years and older and is ONLY compatible with other Thomas Friends Trackmaster vehicles and playsets(Colors and Decorations May Vary)