Enrich the IO Blocks Center experience with additional or replacement Center accessories. This 32 piece IO Blocks Center Expansion Pack is perfect for creating more complex movement or replacing missing parts. Includes 12 IO People, 16 axles and 4 gear cranks. Ages 3+ • IO Blocks Center Expansion Pack inspires additional building possibilities • Includes 12 IO People, 16 axles and 4 gear cranks for a total of 32 pieces • Also acts as a replacement pack for smaller pieces • Ages 3+