Red Heart Super Saver Yarn. This medium weight has been The usa’s bestselling yarn for over seventy years. Best for all knit and crochet projects. Weight category: 4. Content: one hundred-percent acrylic. Putup: 5oz/141g, 236yd/215m. Gauge: 17st x 23r = 4in/10cm on size US8/5mm knitting needles, Recommended crochet hook size I9/5.5mm hook. Dyelotted: We attempt but don’t seem to be all the time in a position to compare dyelots. Care: machine wash, tumble dry, don’t bleach, don’t iron, dry cleanable.