• 169 pieces in total, including 8 components, 35 large pieces, 30 multicolored marbles, 30 glass marbles, and 66 pink connectors. • Interactive construction to create towers and race tracks. • Includes additional connectors to build taller towers. • Helps creative mind development from age 3. • ASTM and EN71 certification for a safe product. • The marble track uses smaller marbles than normal, look for the pink connectors and check the size in the image list.