A set of 4 mini knobbed cylinder blocks and each block has 5 knobs of various heights and dimensions.
- Block 1: The cylinders increase in diameter and height.
- Block 2: The cylinders increase in diameter. The height remains the same.
- Block 3: The cylinders increase in diameter and decrease in height.
- Block 4: The cylinders decrease in height and diameter remains the same.
The selling item is a mini version of the classic Montessori materials, intended for home teaching purpose. Unlike the classic set which has 10 knobs on each block, the selling piece has 5 knobs on each block.