Kids can build their Thomas & Friends motorized railway bigger and add elevation with the Over-Under Tidmouth Bridge from Fisher-Price. When children attach this expansion pack to other TrackMaster train sets, they can send theirr toy trains racing over, under, and around. The bridge features guardrails, a gantry, and a cool Great Race sign, so it's perfect for exciting racing adventures. Kids can experience a world of engaging, imaginative play as they build their own really unique railway full of Really Useful Engines! (TrackMaster motorized toy trains sold separately and subject to availability.)