kids Truck Catapult . You’ll have a great time building this tabletop truck catapult with your child and then avoiding catapulted balls! Building Set includes all building materials; but a hammer & glue are needed. We've also added paints & brushes so kids can decorate their catapult after they build it. Kit also includes truck graphic stickers, 5 small balls, rubber band. Difficulty level: beginner. Younger children will need adult assistance. For ages 4 and up.