This is a measuring tool for rings. Simply push the end through the buckle to form shape. the ring gauge onto your finger. Adjust to give a comfortable fit, checking that it just slips back over the . When best fit is achieved, size indicated by the arrow. It measures for USA sizes. Features - Color: Black and White. - Material: PE. - Size: 11.5x0.5x0.3cm/4.5x0.2x0.1 inch. - Lightweight and portable, convenient for you to carry. - The finger size from size 1 to 17, accurate and clear printing, easy to read and helpful, not only as ring size gauge, but also for other jewelry measurement. - Fit for wedding, birthday, party gift jewelry measuring, help you to choose the comfortable size easily, good you and your family, friends. - Reusable and practical, odorless and smooth surface, would not hurt your fingers. - Adopted from material, it is durable and use. Package list: 10 size measuring tool (Black and White)