★ Includes 1 Addition and Plating Board, Side Addition (with RED Squares), Side Subtraction (with BLUE squares). Both sides draw 12 squares by 18 squares with numbers 1-18 printed on top. A box of 9 blue stripes, 9 red stripes and 17 strips of natural wood ★ Good for children who know the concept of addition and subtraction very early, and learning some simple addition and subtraction operations, improving children's interest in mathematics Please note that this toy is not suitable for children under three years of age due to small parts. Colour: as shown in the pictures. Material: wood. Sales mode: retail and wholesale Size: One Size Length: 30 cm (11.81 inches). Width: 21 cm (8.27 inches) Height: 0.6 cm (0.24 in) Quantity: 1 set. Package includes: (without retail packaging). 1 set of wooden addition and subtraction board