"set of 10 boards. Use the 2-Coloured counters together with our new boards. Always having the number space (up to 20) down pat, the children will gain basic calculating skills easily. The boards are made of solid plastic, 1mm strong and 30 cm long. On one side are circles with numbers, on the other side are blank circles. The diameter of the circles is the same as the size of the counters.
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