Snuggles are made of super stretchy knitted fabric and can easily holds up to 450 yards of sock yarn. Snuggles stretch over your yarn and snuggle them down the the very last bit. Best used with a center pull cake, ball or skein of yarn. Perfect for knitting on the go, keeps your yarn tidy and clean. Reusable and washable. Each package contains 2 snuggles.