This is the 1,200-piece set that lets young engineers construct a nearly two-foot-tall rotating Ferris wheel. Presenting a fun and challenging build, this working model of the classic carnival ride promotes three-dimensional thinking, creativity, and cognitive development as kids exercise their hands-on skills. Once assembled, a battery-powered motor with variable speed control sends the ride’s 12 brightly colored passenger cars gently spinning round and round. All pieces are made of high-grade polished steel. Includes illustrated step by step instructions. Manufactured in Germany. Requires 4 AA batteries. Ages 8 and up. Assembled: 23 3/4" H x 9 3/4" W x 19" D. (9 1/2 lbs.)