Montessori Basic Material Knobless Cylinder
The Knobbles Cylinders invite a child to experience differences in height and width, the consequence of disorder, and helps to perfect coordination, concentration, independence, and problem solving skills through observation.
4 sets of 10 cylinders varying in height and/or diameter in each set. Each set is in a separate wooden box with a lid painted the same color as the cylinders; red, green, yellow, blue. Each set includes a spare smallest piece.