Felting needles pack of 10these needles are very very sharp in order to work with both coarse and fine fibres when doing needle feltingpunching the needles are barbed so that they allow the fibres to knit together when they are stabbed repeatedlyuse the needles in conjunction with the needle holder always use the needles at a right angle to your felt as this will prolong their lifespan and be very careful adult supervision is required and we do not advise these to be used by children u