Stylecraft Special DK is an inexpensive range of yarn, perfect for knitting and crochet. Super crochet blogger, Lucy of Attic 24, has created a range with Stylecraft Special DK especially for her crochet projects. Best used with 4mm pins. 100% Premium Acrylic. For an acrylic yarn, Special DK actually wears very well and feels really soft, plus the ends don't tend to split - all this for £1.99 per 100g ball? This could be the perfect value yarn!