With 48 wooden pieces (including nuts, bolts, drilled bars to connect, and a child-size screwdriver), this classic building set gives kids all they need to tinker and build! Printed right on the sturdy storage box are building plans for a crane, motorcycle, airplane, and race car to get the fun started. With some imagination and a few creative twists and turns, kids can make hundreds more amazing structures, too! Set includes 12 bolts, 8 nuts, 16 building boards, 6 blocks, screwdriver, and storage box that becomes part of the play. Any time kids play with this durable set, they'll be building fine motor skills, problem-solving skills, and hand-eye coordination. Included extension activities guide parents to educational activities that also build early math skills. This building set is an educational gift for kids ages 4 to 6 years. Add the Melissa & Doug Standard Unit Blocks to round out the hands-on play experience and to give kids an engaging option for screen-free fun. For more than 30 years, Melissa & Doug has created beautifully designed imagination- and creativity-sparking products that NBC News called “the gold standard in early childhood play.” Today, Melissa & Doug is proudly partnering with the American Academy of Pediatrics to foster early brain development and help children build important life skills through play.