Kenji has a pullback specification, so you can run it without using batteries! Let’s chase the fast Kenji with Thomas ! Set includes: Thomas (motor vehicle) (1) Kenji (pullback) (1) booster (1) rear buffer (1) station (1) straight rail (2) 1/2 straight rail (2) 1/2 stop rail (1) curved rail (8) single / double track point rail (A) (1) single / double track point rail (B) (1) Sticker (1) * 1 x AA alkaline batteries required (Not included)