Wooden Cuisenaire Rods are ideal for reinforcing different maths skills, from Addition and Subtraction through to Geometry and Measurement. Classroom set contains ten different lengths of Cuisenaire Rods. Each length can be assigned a different numeric value or unit of measure. This classroom multi-pack set includes a total of 444 rods for use with 12-18 students.444 RODS IN SIX TRAYS, AGE 4+.