The James C Brett Marble DK yarn is a versatile knitting and crochet yarn made of acrylic material. With a marbled style in shades of blue jeans, this yarn is suitable for various projects such as accessories, blankets, and apparel. Each pack contains 5 balls of 100g each, making it convenient for larger projects. Machine washable for easy care, this yarn is perfect for creative crafters looking for a high-quality and stylish option for their knitting and crochet projects.