Pro Arte Sablene is a fully synthetic version of sable. It acts, looks and behaves like sable making it a great alternative to traditional animal hair brushes. Pro Arte has spent years developing a synthetic alternative to sable hair and has created something better than ever that performs just like pure sable hair. "Wave Synthetics" creates spaces between the fibers to hold more water and give softness, but still maintain spring and point. The 6 brush set includes: Roundsizes 0, 2, 4, 6, 8, 10