"The modern-day alternative to natural Kolinsky brushes, the Blick Master Synthetic Kolinsky delivers everything you've come to expect from the finest natural hair watercolor brush — and more. These synthetic fiber brushes utilize technology that produces a small, wavy pattern in the fiber itself. When bundled with similar fibers, this pattern creates a series of pockets between the fibers, trapping larger amounts of color not previously possible with traditional synthetic fibers. This and a combination of fibers of varying diameter allows the Blick Master Synthetic Kolinsky to mimic the water retention, spring, and pointing capabilities of natural hair. Try one and experience these qualities, and a more consistent shape over the life of the brush. Lifetime Guarantee — When properly used and properly cared for, Blick Master Series brushes will last a lifetime. If at any time you are dissatisfied with the materials or performance of a Master Series brush, you may return it to Blick for a replacement. Note — These brushes may have either a Silvertone or Goldtone ferrule." -Blick

This brush is made with synthetic fibers that are specifically designed to perform like natural hairs or fibers.

Synthetic