Description from hifa.no:

Perle is a multiple-plied, durable and lustrous cotton yarn, approx. 335 meter per 100g. Suitable for crocheting, hand knitting and hand knitting machine. Delivered on cones of 200g/approx. 670 meter, waxed for machine knitting. Gauge/tension hand knitting: 29 sts and 46 rows to 10cm (4in.) over st.st. using 2,5 needles. Using doubled yarn: 24 sts and 32 rows to 10 cm (4in.) over st.st. using 3,5 needles. Crochet hook 1,75 or 2,0. TD at approx. 9on standard gauge knitting machine.