This Natura One Pound Yarn is made from 100 percent acrylic, making it durable and long-lasting. This worsted yarn, white, can be machine washed in warm water on the gentle cycle and should be tumble dried on low heat. This yarn should not be bleached, ironed or dry cleaned for best results. The neutral color of this yarn can be used in many projects. The one pound size of this yarn makes it easy to start a project and to store when not in use. It is meant to be used with size 8/5mm knitting needles or a size H8/5mm crochet hook. This Natura Yarn is a weight category 4, and it is made in the USA.