4 sets of multicoloured knobless cylinders for use in montessori sensorial, visuo-spatial, gradation and dimension comparison exercises.

Contents:

1 set of red cylinders: one dimension - different diameter, same height
1 set of yellow cylinders: two dimensions - different height, different diameter (the tallest cylinder is the thickest)
1 set of green cylinders: two dimensions - different height, different diameter (the shortest cylinder is the thickest)
1 set of blue cylinders: one dimension - different height, same diameter