Andrew Mack has been crafting high-quality brushes for pinstriping and lettering for over 100 years, creating traditional brushes that are the favorites of professional signmakers, pinstripers, and letterers. The hair tused in their striping brushes is 100% unmixed squirrel hair and the brushes are made in America by Americans in Jonesville, Michigan. This is a statement that no other pinstriping manufacturer can claim! The manufacture of their brushes is totally a hand-crafted operation, just as it was in 1891 when the company began. There is not one piece of machinery used in the manufacturing of Andrew Mack brushes -- each one is completely manufactured by eight to ten very talented technicians.