Our Amazing Tracks Dinosaur World 142 Pieces set is made from quality materials designed for kids. The toy car races around the tracks with great power. These tracks are great for your kids to build all types of roads. Your child’s development through play as your toddler enjoys our slot race car dinosaur tracks he or she will also be practicing their motor skills and coordination, learning how to make all types of roads with the flexible tracks, developing hand-eye coordination, refining their motor skills and their problem-solving techniques too. The Amazing Tracks Dinosaur World includes 142 pieces, including 1 battery operated military car, 2 dinosaurs, 4 trees, 2 slopes, 1 swing-door and 1 hanging bridge.