“2/20 NM Lace Weight… Variable Lace Gauge”-- label.

“PML300 Pura Merino Lace: our worsted spun 100% merino wool yarn in a 2/20 lace weight has been a long time favorite in the commercial sweater market. This versatile yarn can be used successfully for hand and machine knitting, weaving, crochet, and a variety of other fiber arts. Available in 25 colors”