12 months & up. This oversized board features colorful counting discs for sorting onto stationary pegs. Double-sided wooden squares show numbers 0 through 9 on one side and corresponding dot patterns on the other. The removable counting discs offer versatile opportunities for matching, counting, and practicing addition and subtraction, both on and off the board. Measures 15.75"W x 3.5"D x 4"H.