Often used to describe quality, especially in products.
El tejido extrafino que eligieron para el vestido le otorgó un aspecto elegante y sofisticado que todos admiraron.
The extra-fine fabric they chose for the dress gave it an elegant and sophisticated look that everyone admired.
El papel extrafino es ideal para la impresión de fotografías de alta calidad.
Extra-fine paper is ideal for printing high-quality photographs.