Yarn bases and the dyeing process
The yarn bases that I use to for dyeing are natural and come from farms that do not practice mulesing (animal cruelty):
Some of the bases have the superwash treatment which means that they can be washed in the washing machine. However, we always recommend hand washing traditionally dyed wool to prolong the useful life of the colors.
The indicated needle size is a suggestion. Depending on the project and your knit tension ,you should choose the size of needles that suits you best.