Magnum 8 ply is a well known favourite among knitters. It s 100% acrylic, with a great colour range. These are 100 gr balls with 271 metres per ball, so very economical to use. Needle rec. is 4 mm. Magnum is a machine washable yarn thats perfect for general knitting - great for toys, blankets, charity knitting..a great yarn at a great price!