Series #444 Virus II (Actual Overall Length 8") The Virus II is made of a soft golden synthetic hair. Designed by "Dave the Letterman" to appease the small crowd of painters who thought the original virus was a touch too stiff. So we decided to make the brush with the same specifications as the original but with a golden synthetic hair that is a little softer. This brush will still be used for the same applications of scroll and script work. Available in Sizes 0 1 2 4