Metric Sock Weight Needle Gauge RingThis sterling silver ring is not only attractive, it is a fully functional knitting needle gauge! This ring will measure your tiny (sock and lace weight) needles, now in metric sizes 1. 5mm 3. 5mm! (Also available in US sizes, 000 4, check out the original Sock Gauge Ring for that option.) The ring is approximately 7. 5mm wide and 1. 5mm thick, a comfortable fit for most fingers (each ring is made by hand, and due to the nature of casting, there will