Round Hybrid Boar Bristle Brush. This nylon and boar bristles round Beard Brush with natural grain handle will help untangle your manly mane and exfoliate your skin to promote healthy beard growth. Brush is also heat resistant for styling with a blowdryer. Brush Diameter is 1.5 inch including bristles allowing you to use as a straight brush or for curling and styling. By brushing daily you are removing dandruff and reducing risk for ingrown hairs your beard. Additionally your skin will simply be healther.