Da Vinci Grigio Synthetic Brushes are made from different diameters of New Wave synthetic fiber, with a slightly rough texture for color absorption, strength, and elasticity. Ideal for subtle oil painting techniques plus a diverse range of acrylic techniques. Long handles. Vegan. - Da Vinci Oil Brushes Wood Box SetWooden Box Brush Set, GRIGIO - __BLICK Exclusive!__ This set includes four long handle Da Vinci Grigio Brushes, one each of Size 12 Flat, a Size 8 Filbert, a Size 8 Flat, and a Size 4 Round. Also included are a free painting cloth and brush soap.