Creative Gravity Play! The Trix Track Wonder Bridge Track is more than a classic wooden ball run with fun and exciting eye-catching tricks and an easy locking system that keeps your creations stable while you build your maze. With your imagination there are endless configuration possibilities! The Trix Track Wonder Bridge Track includes exciting new blocks that add an entirely new dimension to Trix Tracks which allow you to build faster and higher than ever before. But how do we get the ball over that bridge without falling?? Let the ball run and find out how each trick helps to bring the ball to finish line! Trix Tracks help understand the cause and effect relationship. Specially designed bricks are made from a combination of eco friendly recycled saw dust and food grade plastic so it is safe, durable and good for the environment. Combine with other Trix Track sets to create even larger tracks, more trix and endless fun!