Premium range rods. Ten solid wooden rods divided into units by alternating colours of red and blue. The rods are constant in height and width (2.5cm) while graduated in length from 10 cm to 1 meter. This material helps the child to learn the number names 1 to 10 and to associate the names with the correct quantities. When used with the printed numerals the child learns to associate the figures with the actual quantities 1 to 10.