The unique synthetic hairs of these brushes provide the stiffness of a natural bristle and will maintain those qualities when used with water-based acrylics. They are professional quality brushes with excellent snap and hair shape retention for maximum control. Each features a seamless metal ferrule and a long varnished wood handle. The Dakota Brush Set includes Bright 6, Flat 10, Filbert 4 and Round 2. Brand: Princeton Art & Brush Co