Set of 3 MACK "The Virus" Scrolling/Script PINSTRIPING BRUSHES Part# MAC 444-SET3; (1 Brush) SIZE: 0 HAIR LENGTH OUT: 7/8" ,(1 Brush) SIZE: 1 HAIR LENGTH OUT: 1",(1 Brush) SIZE: 2 HAIR LENGTH OUT: 1-13/16". The Series 444 is one of the sign industries most exciting and innovative new brushes, and is affectionately called "The Virus". The Series 444 brush is a specially blended golden taklon. This recommended design by the industry leaders is perfect for scroll and script work. Available in size #0, 1, 2, 4, 6 or in sets.