List of yarns for crochet and knitting
== Yarn size == Depending on the exact yarn weight and the gauge of the knitter or crocheter and how tight or loose the yarn is held, the gauge listed below can vary. The type of yarn can also affect the look of the item, so if it’s thicker yarn the item will look bulkier compared to yarn that is thinner.
Source: Wikipedia — List of yarns for crochet and knitting (CC BY-SA 4.0)