Description Children in preschool can enjoy playing loading and unloading with their favorite characters from the animated series Thomas & Friends with these motorized track sets from Fisher-Price. With famous characters like Thomas, Percy and Nia, young drivers can collect and connect these track sets to create an even bigger Thomas & Friends railway adventure. These track sets are compatible with other Thomas & Friends tracks except wooden tracks. (Set of additional rails sold separately and subject to availability.) Requires 2 x AAA batteries.