Qtoys | Montessori Cuisenaire Learning RodsCuisenaire rods are mathematics learning aids that provide an interactive, hands on way to explore mathematical concepts and length. This learning set has 222 unit rods in 10 different sizes, cased in a wooden storage box. It includes: 12 each of the rod from 10cm size to 5 cm size, 18 rods of 4 cm size, 30 rods of 3 cm, 36 rods of 2 cm, and 66 cubes of 1 cm. There are also 6 activity cards in varying difficulties. Ethically made from plantation