So Acute is a Vegan angle detail brush, apply powder color to eyebrows. Brush upward in short strokes to the direction of hair growth

As with all of our brushes, the ferrule (the part closest to the bristles) is brass and is rust-resistant, seamless, and nickel colored. The filament is hand-cut and hand-trimmed. The wood is used from a reforestation program that keeps the creation of these brushes sustainable and eco-friendly. They are all sized to fit within a normal-sized makeup bag and are pro-quality brushes.