Wooden abacus for math learning, featuring colorful beads. From before kindergarten to the lower grades of elementary school, children can become aware of numbers and visualize addition and subtraction, learning while playing. It shows some signs of use, but it's not broken. - Color: Red, Blue, Green, Yellow - Material: Wood - Type: Abacus - Number of Rows: 10 - Educational Purpose: Math Learning Tool Thank you for looking.