This Round size 10 Aqua Elite Travel Brush by Princeton is made with high performing Synthetic Kolinsky Sable hairs. Constructed with a beautiful metal barrel in silver that doubles as a handle as well as storage for the brush head, this brush is the perfect tool for the artist on the go! The Series 4850 line is an affordably priced alternative to natural Kolinsky and due to the NextGen technology each brush performs with an impeccable likeness, holding more paint than other synthetics on the market and features the finest point and tapered edge with even color release.