This tiny beauty blender is made to be used for small and narrow areas like applying concealer, highlight and contour.
It is used exactly like a regular beauty blender but as i said for small and narrow areas.
Look at the difference in size, the one on left is how it looks dry and on right how it expands when its wet.
This was a first failure attempt to use the micro.mini beauty blender to blend concealer, the amount of product was too much for its small size, it works better with much thicker formula like cream highlight or contour.