Solid Barrel Mixed Bristle Round Hair Brush. Boar bristle adds shine, added nylon allows the brush to penetrate thicker hair. Thermal infused ceramic barrel heats up quickly for faster dry time. One-piece design guarantees that this brush won't break down due to heat.Reinforced boar bristle solid barrel ceramic round hair brush for thick hair. Penetrates coarse hair,  The thermal infused ceramic barrel heats up quickly for faster drying time. Ceramic coating on aluminum barrel makes this range durable solid barrel. One-piece design guarantees that this brush won't break down due to heat. Choose from 4 sizes.