This Mathematics learning aid was made in Australia by the Cuisenaire Company of Australia under licence . These wooden number rods were invented by Belgium school teacher Georges Cuisenaire, who wrote a book about them in 1952 (Les Nombres en couleurs). Cuisenaire rods with booklet and box, wood / metal / paper, made by the Cuisenaire Company, Australia, 1965-1980. This object consists of a sheet metal box, containing 10 compartments, each with a single size of wooden blocks in different colours. The shortest block is 1 cm long, next 2 cm, etc., longest is 10 cm long. ORIGINAL CUISENAIRE (R) NUMBERS IN COLOUR / (R) MADE IN AUSTRALIA UNDER MR CUISENAIRE'S LICENCE BY CUISENAIRE CO OF AUSTRALIA P/Lcuisenaire, educational resources, mathematics learning aids