Young mechanical engineers can design, construct and test 9 simple twisting, turning machines by following the build guides on the included STEM challenge cards and using the sets construction pieces. Inspired by machines found in the real world, your child will build a space rover, satellite dish, crane and more while learning the fundamental principles behind designing all kinds of specialised mechanical equipment. This 60-piece STEM building toy set includes all of the gears, pulleys, belt drives, and connectors needed to build simple machines, as well as 10 activity cards packed with challenges. This set is ideal for inquiring young minds in the classroom, a STEM club, or for learning through play at home.