The Pro Arte Prolene Plus series 008 one stroke brush size 1/4 inch represents a pinnacle of achievement using a wide variety of Prolene synthetic filaments which are ferruled in beautiful gold plate & fashioned with teak handles. The brush has an excellent spring, points easily & holds colour well. Probably the closest any man-made filament brush comes to sable. The Pro Arte Prolene Plus series 008 size 1/4 inch one stroke brush is excellent for giving firm, sharp lines, lettering & one stroke work. Popular for washes in watercolour.