The Original Mack Sword Striping Size 0 Series 10 Blue Squirrel Hair Pinstriping Brush 1/4" Head Width Size: 0 - Head Width: 1/4" Handcrafted and shaped as it was many years ago - The original mack Series 10 sword striping brush The very finest grade of blue squirrel - 100% unmixed natural blue squirrel hair Designed for pinstriping, design and scroll work - Blue thread ferrule - Hair Length: 2" Extra attention given to quality control with respect to shape and cleaning