Weight: Fingering #1 Fiber Content: 100% Mercerized Brazilian Virgin Cotton Yardage: 547 yards / 500 meters / 150 grams Gauge: 28 stitches = 4 inches Needle Size: US 2.5 - 4 / 3 - 3.5 mm Hook Size: 1.75 - 3.25 mm Care: Machine or hand wash