Open this book to delve into a big construction site! Watch out! Hot load coming through! The cement mixer is on the move and the jackhammer isn’t far behind. Luckily, the architect is there to help organize the chaos! With the magnetic backdrop and 30 magnets, your child will be able to bring both the characters and vehicles to life to ensure that progress is being made on this building site. Magnetic toy made for children ages 3 and up.