Montessori Cylinder Blocks

We are engaged in manufacturing, exporting and distribting excellent quality Montessori Cylinder Blocks to our valuable clients. 4 blocks, each containing 10 cylinders with knobs, each cylinder fitting into its respective hole. Block 1: The cylinders vary in two dimensions: The diameter increases from 1cm to 5.5cm The height remains constant at 5.5cm Block 2: The cylinders vary in three dimensions: The diameter increases from 1c, to 5.5cm The height increases from 1cm to 5.5cm Block 3: The cylinders vary in three dimensions: The diameter increases from 1cm to 5.5cm The height decreases from 1cm to 5.5cm Block 4: The cylinders vary in one dimension: The diameter remains the same. The height increases from 1cm to 5.5cm.