The Coloured Counting Bars is an alternative to bead bar materials, containing twenty pieces each of wooden bars from one to ten. Each of the bars are in the same hierarchical colours as the bead materials (with the ten bars being a natural wood finish), but without clearly defined units (i.e. beads) on each piece the student has to use a more comparative style of reasoning to determine their value. The bars are 1 cm in cross-section and range from 1 cm to 10 cm in length. The set comes with a lidded, compartmentalized box measuring 35 x 25 cm.