G1002SCAge 4 and up 121pcs per set Used to teach the secimal systems, area and volume. - UNIT=1 (1x1x1cm) - ROD=10 (10x1x1cm) - FLAT=100 (10x10x1cm) - CUBE=1000 (10c10c10cm) Linking Base Ten MaterialSKU: G1002SCHK$239.90PriceQuantity*Add to Cart