Made with the finest golden synthetic fibre which results in a combination of great elasticity and durability. Ideal for working on rough surfaces. Da Vinci Nova Flat Oil Brushes Series 1870 are very popular and proven brushes for oil painting but are also ideally suited to translucent acrylic painting. Da Vinci Nova Flat Oil Brushes Series 1870 have extra fine golden synthetic fibres. They have exceptional elasticity and far exceed the lifetime of natural hair brushes, even on rough surfaces. The brushes have long green lacquered handles and seamless silver ferrules.