This set covers a range of maths skills including counting, ordering and ordinality. Good for matching to quantities and for quick work when creating outdoor graphs and representations in data handling and analysis. Includes numbers 0 to 20, 1 x equals, 1 x plus, 1 x minus, 1 x times, 1 x divide and 2 x more / less than signs. Dia 5cm. Rec 3+. Natural wood may split, bark will peel.