The search for the perfect acrylic brush is over! Pro Stroke Powercryl Ultimate Acrylic Brushes can be used with all types of acrylics, from fluid to extra-heavy bodied acrylics! The secret is Powercryl’s proprietary combination of 3 separate diameters of synthetic hair filament. The combination give Powercryl good absorbency, superb structural ability, and excellent rigidity. The Bulk Pack is perfect for classrooms or workshops!