The package consists of Cotton Medium 4 Gauge Yarn. It works best with a 4mm needle and glides effortlessly on your hook to give you the perfect knit. Available in 4 plies, so you can make blankets, light cardigans, shawls, kids' wear, scarves, socks, rug tufting, etc. Don’t be worried about its super soft, smooth handle - this yarn is sturdy, durable, and easily machine-washable!