Sonia G Lotus Worker is a brush.
Lotus Worker is a small-medium, eye brush with a rounded edge and a moderately dense feel. It features a mix of saikoho bristles, and it has a hair length of 15mm and total length of 155mm. This is the same as the Worker Two in the permanent range.
I regularly use the brand's Worker brushes in my eyeshadow application, typically reaching for them to do more intense inner tearduct or brow bone work. I'll also use them to diffuse and soften the edges of crease colors if I need some extra buffing. You can read my full review here, as this brush was consistent with original release.