Rico Design crochet yarn Ricorumi DK white glow in the dark is made from 100% polyester. It is popular for crocheting various toys, figures and animals in the amigurumi style, as well as for making accessories. A 25g ball has a length of 60 m, and for crocheting we recommend using a hook of size 3–4. This quality yarn has a soft texture that is pleasant to the touch and can also glow in the dark, bringing all your creations to life. This special yarn combines beautifully with, for example, cotton crochet yarns. Discover the charm of Rico Design cords and yarns and start your new crochet projects. Instructions for using this yarn can be found in the Books and Instructions category.