The fun, striping color effects of Zauberball in an environmentally friendly worsted weight yarn! Alb Zauber Extra is 75% wool and 25% Biodegradable nylon! Each 50 gram ball yields approximately 126 yards. Gauge: 20 sts = 4" on a US 6 - 8 needle. Great for accessories, garments, or boot socks. Machine Wash!