All Aboard!Your train build is divided by a valley or a river! You must build a bridge to complete your track set so your train can travel over these obstructions! Conductor Carl red brick risers will allow you to do exactly that. Create entirely new track designs and added height by adding bridges to your track. There are so many design options when you add a bridge or two to your track!Why You'll Love ItThis set of brick risers gives the builder many new options to construct exciting new track designs. All made from safe, natural cut wood means these pieces last longer. When you've got enough track, the only limit is your imagination.