Mack’s Sign Painter’s Shop Set provides a complete set of the 9 Andrew Mack Brushes that every sign painter needs. The Shop Set includes sizes #0, #1, #2, #3, #4, #5, #6, #8 in Series 179 and a #4 Series 839 Outliner. Mack Lettering Quills are considered the sign industry’s standard for professional sign lettering and pinstriping. Save 35% on the unit price when you purchase a Shop Set.