What it is: A double-ended eyeshadow and eyeliner brush to create clean, precise lines and blended, smoky looks with a single tool. Brush Formulation: Cream Bristle Type: Synthetic What Else You Need to Know: Create clean, precise lines or blended smoky looks with this dual-ended brush with a fanned, flat side for eyeliner and a rounded, fluffy side for eyeshadow.