The Ultimate Buffer Brush made of soft goat hair is perfect for applying your mineral foundation! Because the bristles are packed tighter and slightly flatter than a kabuki, you get medium to maximum coverage with a flawless finish! Great for finishing and shimmer powders too! The hair of the brushes is come from the first grade wool, mink hair and horsehair. And the brush holders are made of first grade wood. In addition, it also made by excellent craftsman. The overall length is 4 1/2". The bristles are 1 1/2" long.