Sonia G Lotus Detail is a brush.
Lotus Detail is a small, angled cheek brush that features a mix of dyed and undyed saikoho goat, and it has a hair length of 28mm and total length of 173mm. It is new (and at least at this time, exclusive to) in the set.
It's a more feathery, incredibly soft and silky-smooth brush head that felt less-dense than most brushes I have with a similar shape. It has a fluffier edge, which gives a more diffused effect when initially laying down product, and that fluffiness also helps to spread and diffuse for a blended edge. It worked well for powder cheek colors, though I found it most useful for getting more buildable coverage out of more intense highlighters, contouring/sculpting, and highlighting.