Content Solids, Stripes, Prints & Variegates: 100% Acrylic, Content Flecks: 96% Acrylic, 4% Other Fibers, Care: This yarn for knitting, crocheting, amigurumi and craft projects is easy to care for, simply machine wash and dry all crafted items. Ball Size: Each solid ball of this #4 - Worsted Yarn is 198 g(7 oz) and 333 m(364 yd) long, for our multi color, prints, variegates and striped yarn each #4 – worsted ball of yarn is 141 g(5 oz) and 215 m(236 yd) long. For our Flecks & Heathers yarn each #4 – worsted ball of yarn is 141 g(5 oz) and 215 m(236 yd) long, perfect for all your Knit, Crochet and Craft needs! Knitting Gauge: 4” x 4” (10 cm x 10 cm) 17 sts and 23 rows with a 5 mm (U.S. 8) knitting needle Crochet Gauge: 4” x 4” (10 cm x 10 cm) 12 sc and 15 rows with a 5.5 mm (U.S I-9) crochet hook Red Heart Yarn: Red Heart is proud to be America's Favorite Yarn and most recommended yarn brand! Super Saver Yarn: Super Saver Yarn is the perfect yarn for knitting, crocheting, crafting, and Amigrumi! The best basic yarn, versatile with over 100 colors. Easily machine washable and dryable, making it a consumer favorite for gifting, charity, and crafting. OEKO-TEX certified and free from harmful substances (tested for over 300 harmful substances). Visit the Red Heart brand page for our full catalogue of Super Saver Yarns!