This set of 3 polyester brushes is suitable for oil colour, acrylic colour and gouache. The set contains the following types and sizes: 3 flat brushes in sizes 4, 8 and 16. Filament brushes consist of synthetic fibres (polyester) and are suitable for all types of paint. Due to the strength and resiliency of polyester, filament brushes are highly suited for oil and acrylic colours. As the filament brush absorbs moisture well, it is also suited for watercolour and gouache.