The core of this very fine yarn is stainless steel and wool is wrapped around the core. Because of the stainless steel, there is memory in the yarn. When it is twisted it will stay in that shape unless you straighten it out.
It is easiest if you knit it with 2 strands, however a lace stitch in a single strand is beautiful. If you work in 2 strands, there will be a variegation in the fabric colour. Works fine as a warp or weft yarn for weavers.
75% wool, 25% stainless steel