Heritage Silk is a super-soft yet durable yarn that is machine washable and dryable because of its blend of superwash merino wool and silk. Heritage Silk has a lovely drape and subtle sheen throughout the yarn at 437 yards, this yarn is great for lace shawls of all sizes. It's perfect for color work or a one skein project such as socks, mitts and other fun accessories. DETAILS 85% Superwash Merino Wool / 15% Silk Weight: 100 g (3.5 oz) Approx: 437 yds (400 m) Knitting Needle Size: US 1 - 3 (2.25 - 3.25 mm) Knitting Gauge: 28 - 32 sts = 4" (10 cm) Crochet Hook Size: C - E (2.75 - 3.50 mm) Crochet Gauge: 22 - 25 scs = 4" (10 cm)