Basic knitting needle sizes from 0 through 17 American, crochet hooks from sizes B through P, and metric measurements from 2mm through 8mm. These lightweight, 2.5" square tools are compact and handy to have along, whether you tuck them inside your knitting bag or hang them from the ball chain loop outside for easy access. There are 42 tool options to purchase individually so you can mix and match exactly what you need. Each Mini Tool comes on its own chain. Whether you’re knitting, crocheting, sewing, stitching, making socks or mittens, or spinning yarn, there’s a tool to help with almost any project. Mini tools make perfect gifts and are a great way to try out new techniques. Product Details: Material: Domestic Cherry Approximate Size: 2.5” x 2.5” x 3/16” Made from locally sourced cherry hardwood, handmade and finished in our studio in Providence, RI. Because they are made of a natural material, the appearance of each tool may vary slightly.