From the web page:

Sjöalyckan’s Dreams is our mixed yarn collection with 75% wool and 25% silk. It is 5760 meters/kg. It is sold in skeins of 50 grams, and it is factory dyed.

This yarn is lovely to work with.

Knitting gauge (single yarn) with 2.5mm-3mm needles: 25 stitches= 10 cm.

Knitting gauge (double yarn) with 4mm-4.5mm needles: 20 stitches= 10 cm.