The wool for Tukuwool DK comes from Finnish sheep farms that grow Finnsheep and Finnsheep/Texel breeds. Woolen spun Finnsheep wool is warm and airy, soft and rustic. Approximately 22 sts per 10 cm on 4mm needles. You may go with needles 3.75-4.5 and the gauge will be between 18-22 sts. Depending on your project, you may choose Tukuwool DK