JEWEL TOOL Universal Ring Sizing Gauge in Nickel Plated Brass (TJ-91162). This meticulously crafted tool is an indispensable asset for jewelry designers, goldsmiths, and hobbyists looking to achieve impeccable accuracy in ring sizing. The sizer is equipped with 36 ring sizes mounted on a 2 3/4" (6.99 cm) metal hoop, offering a vast range of sizes from 1 to 15 in half steps in accordance with the US standard sizing chart, also accommodating additional sizes to meet various needs. What sets this ring sizing gauge apart is the inclusion of metric sizing inscriptions, ensuring universal applicability and convenience. Crafted from nickel-plated brass, each ring showcases clear numerical inscriptions, which are scored into the metal, allowing for easy identification and precise sizing. Renowned for its fine craftsmanship, the tool guarantees accuracy in sizing, whether you're creating a new ring or altering the size of an existing one. The durable nickel-plated brass construction not only promises longevity but also lends a touch of elegance to your toolkit.