The needle for carrying wool arrasene should have a larger eye than the one employed in carrying silk arrasene or rope silk.    From LearnThat.org.  [http://www.victorian-embroidery-and-crafts.com/needles.html]

It is made also in silk; but this is inferior to worsted arrasene, or the old-fashioned chenille.    From Wordnik.com.  [Handbook of Embroidery] Reference