The Craft Yarn Council publishes the standards most yarn labels follow: the numbered yarn weight system, needle and hook size charts, skill levels and body measurement charts for sizing.
It is the reference to check when a pattern and a yarn label do not seem to agree.
Prices, shipping and features change. Check craftyarncouncil.com for current details.
Find a substitute yarn for any pattern
App for following knitting and crochet patterns
Interactive knitting and crochet patterns with built-in counters
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