Kaimei Natural Hair Sumi Brush Pen - Convenient for studio or travel, these brush pens have a 100% natural weasel (sable) hair brush head and use a dense black sumi ink cartridge for incredible ink work, lettering, and drawing. The brush head is 3/8 inch long and comes to a traditional one hair point. Natural hair resiliency is like no other brush experience, and is more durable than nylon bristle brushes. The barrel of the pen is hard plastic that has been striped to give the look of stained bamboo. From brush tip to pen base, the pen measures 7 inches long. The first image shows what the pen looks like with the cap on and off; the price listed is for one pen (not two).