This is a brush for handpainting models.
This extremely fine brush is perfect for adding a delicate touch to your acrylic painting, watercolor painting or oil painting!
From the item's packaging:
Athena brushes are among the best in the world. Each brush is made from carefully selected natural and synthetic fibers giving the Athena Brushes excellent durability with great flexibility and control. Athena Brushes are the choice of professional artists, teachers, and sutdents throughout the world. We are confident that you will find Athena Brushes to be the finest brushes you have ever used.