MUA E6 Eyebrow Brush With Comb

The flexible brush side: This bristled brush shapes and grooms eyebrow hair into place, creating a volumised, bushy effect. It's also useful for blending in previously applied brow colour. 
The solid comb side: This comb separates lashes and removes mascara clumps after application. It can also be used on the brows to give them a polished look.