Mack 20 Series Squirrel Hair Sword Striper Pinstriping Brushes: Set Of 6 Brushes, Part#'S 20-4, 20-3, 20-2, 20-1, 20-0, 20-00; 1 Each Of These 20 Series Mack Brushes: Size: 4 Head Width(Inches/Mm): 9/16" / , Size: 3 Head Width(Inches/Mm): 1/2" / , Size: 2 Head Width(Inches/Mm): 13/32" / , Size: 1 Head Width(Inches/Mm): 5/16" / , Size: 0 Head Width(Inches/Mm): 1/4"/ Size: 00 Head Width(Inches/Mm): 7/32"/ , America'S No.1 Selling Striper-Best For All Around Work! 20 Series - Squirrel Hair Sword Stripers (The 20 Series Is Made In Sizes 00, 0, 0, 1, 2, 3, 4, 5). America'S No. 1 Selling Striper And Touch-Up Brush, The Sword Style Is Best For All Around Work, Lacquer & Enamel Resistant, Made In . In 7 Sizes: # 00 Thru # 5, Regular Length Of Hair: 2 Inches Or