VOLUME
Rule of thumb: If fullness, darkness & strip lash looks is what you are after, you can go to the max at level 5, with 6+ lashes up to mega volume as long as your lashes are healthy for it. Another reason to need volume is because you have a ver sparse lash-line and need the coverage from volume fans to make it appear as though you have more lashes. Either way, you artists will weight adjust the lashes and create different sized fans that meet your end result be it, natural, wispy or fluffy.