A professional synthetic hair brush family for effective work. Thanks to the synthetic hair, it releases the paint evenly. Aurore Boreale decorative synthetic hair brushes feature a precise design and eye-catching finish, so you'll always have the right brush for your next job. The Ombre Brush is a synthetic, thinned-hair, gel decorative brush for perfect colour transitions. The brush is wide enough to paint an even transition across the full width of an average-sized nail.