Yarn Valet tools provide creative, lightweight solutions to the issues that plague every stitcher. Stay organized and efficient while enjoying your knitting and crochet projects. Yarn Keys 6 pc- You know how important the yarn label is; with the color and dye lot numbers crucial for matching another ball of yarn as well as the all important washing needs. Most of the time however, they end up thrown away or lost at the bottom of the bag. Keys are designed to fit onto your yarn and attach the tag so you will never lose it again. Plus, it makes a cute and sturdy gift tag so your recipient can be confident in caring for your hand make gift.