Brustro Greengold Rigger brush is a very thin brush with very long bristles. Rigger brushes are best used for fine details in the artwork. They are excellent for having a lot of control of the paint brush and for creating very thin lines. A Rigger brush can also be used with inks for lettering and adding words to your pages. Because the brush tip is very small, this makes it easier to write out letters, numbers and words. Many artists who sign their artwork would use a Rigger brush when writing their signature. In art journaling, this is a great way to add text and words to your pages.