Good to know! Those were the ones I was looking at
Of course one can buy merino knitting wool, but it tends to be superwash, which isn't ideal...
I've since bought some 'normal' wool, and assuming I don't have someone who's sensitive to lanolin, I figure that will do to start, and I can then get a merino as an (perhaps smarter) alternative. Always nice to have at least 2 of things - one in the wash and one to wear