Cuisenaire rods are a great way for teaching children elementary maths concepts such as addition, subtraction, division, multiplication and fractions. Children gain a visual undertanding of the concepts using the different sized block units from one to Ten. This set includes 308 pieces in total (White 176pcs, Brown 6pcs, Blue 6pcs, Orange 6pcs, Yellow 10 pcs, Dark Green 10pcs, Black 10pcs, Red 36pcs, Light Green 36pcs and Pink 12pcs)The wooden rods are contained in a storage case with sliding lid.Case measures: 32.5 x 17.5 x 3.5cmAges: 4+