The Indian Miniature brush is made of squirrel hair and could only be bought in India. The supply is limited and I managed to get 4 from previous classes.
Do note that the qualities do vary and it is also down to how the individual feels and uses his /her brush. The one on the left with more of a curve was much better and easier to do. One good test to draw circles, the one with more cuve is much easier to use. Here is a sequence of pictures in which I tried to captured how the brush works when I attepmt to draw a circle clockwise.
Apparently it is a normal practice to draw circles with the brush prior to any drawing session for up to 30mins, to familiarise with the use of the brush again. It is largely believed that it calms and clears the mind, and prepares one into the meditative act of painting. It is also the same movement one uses to shade the details. For this particular class though I have a bit more limited use of the shading techniques but more of using the tip to draw very fine, tiny leaves.
