12 months & up. Over-sized board features colorful counting discs to sort onto stationary pegs. Double-sided, wooden squares have screened numbers 0 through 9 and a corresponding dot count on the opposite side. Rearrangeable, loose parts allow for multiple matching, counting, addition and subtraction activities on or off the board. Measures: 15.75"W x 3.5"D x 4"H.