Brush Diameter : 1.6 inches including bristles. Overall length: 9.3 inches Nylon and boar bristles round hair brush, Gives your hair natural shine. Ergonomically designed handle, light and easy to use. Suitable for all types of hair, Perfect for drying hair and designing hairstyles. You can use it at home or bring it to travel. The first choice for Hair Stylist to create the best hairstyle design Stimulates the scalp and increasing blood flow. Protect your hair from injury. Prevent grease from accumulating at your hair roots and make your hair look smooth.