Parents and little engineers, this TrackMaster Head-to-Head Crossing is about to take your train adventures to the next level! When your motorized TrackMaster trains (sold separately, of course) come speeding through this crossing, they actually knock over the signal and tip the boulder to reveal a hidden dinosaur fossil underneath. How cool is that? It connects right into your existing TrackMaster layout and works with all the other sets and expansion packs. The trains will tilt and speed through the curved sections just like you'd expect, but now with this awesome interactive element that kids absolutely love. Watching that boulder tip over to show the dinosaur never gets old. Perfect for expanding your current setup or starting a new adventure. The quality is exactly what you expect from Fisher-Price - durable enough for rough play but with enough cool features to keep kids engaged. If your little one is into trains, dinosaurs, or just causing controlled chaos with their toys, this crossing accessory is a total win. It's the kind of toy that gets played with over and over because that action is just so satisfying to watch!