The No. 1 brush of the Urban Sketching movement, The Da Vinci Casaneo features Da Vinci's innovative "wavy fiber” that returns to a point or edge far better than any synthetic squirrel brush. Excellent for watercolors, gouache, acrylics, inks, and for calligraphy and silk painting. - Da Vinci Casaneo Synthetic Squirrel Watercolor Brush - Round, Size 5, Short Handle, SyntheticCasaneo Round sh, SZ 5 -