COMBINATION & BOAR/PURPLE NYLON COMBINATION This Ionic Brush is a beautifully made piece. Made of lightweight Beechwood available in either handle type or with a leather strap with 7 rows of Brass Bristle with an outer row of high quality Boar Bristle. This brush is a definite for all Terrier Breeds. The benefits of Brass/Boar combination are: the brass is non-static and it removes dead hair and dander while the Boar and/or Nylon smoothes and polishes the coat. We feature two different gauges of brass. The Brass with Purple Nylon are for very dense short terrier breeds with a 1.2 gauge. The Ionic Brass/Boar are for soft coats and/or longer coated terriers with a .06 gauge.