The Pro Arte Connoisseur round brush is a beautiful blend of Prolene and sable. The mix is critical and took time to perfect but the result is remarkable. Here is a brush that satisfies the purist... it feels and looks like sable; it bellies, holds colour and points in the manner which one has come to expect from a Pro Arte brush. It also delights the thrifty with long lasting synthetic content, which helps to keep the price way below a Kolinsky sable. Designed and formulated for use as a watercolour brush, it performs well in every way and has been a great favourite with artists for many years. Seamless nickel ferrules. Black polished handles with red and white tips.