Almost 20 years ago, Princeton gave artists a synthetic version of Sable that was almost the equal of fine Kolinsky. Today, it's still the standard for performance among its rivals. When Princeton set out to create a synthetic version of Squirrel, the company developed a brush that may actually outperform the natural version.

Neptune is Princeton's thirstiest brush ever, delivering oceans of color to the sheet. Featuring the latest synthetic fiber technology, the Neptune's multiple-diameter filaments are configured to replicate the smooth feel of natural Squirrel, with enhanced snap and resilient strength. Experts in natural hair have been incredulous that the Neptune brush hair is actually synthetic.

This is a 1-inch brush with a short handle and contains synthetic bristles