Covering shapes and numbers 0 to 21, this Number Line can be unfolded section by section to reveal the required range of numbers. Numicon Shapes on the number line are large enough for children to tell them apart in matching activities. On the number line, the Numicon 10 shape is 3.2cm high. Dimesions: W 206(mm) x H 106(mm) x D 3(mm).