Want to be the one that always knows the size of anyone’s jewelry? We’ve got you covered! These calipers will make you a measuring pro! Want to be the one that always knows the size of anyone's jewelry? We've got you covered! These digital calipers will make you a measuring pro! A digital caliper is a highly accurate tool used to measure the diameter of the wire. In a body modification context, it measures the diameter, length, and gauge of body jewelry. It is accurate to .01 mm. Some calipers are not digital, but these are not preferred. They’re just not as accurate as their digital counterparts! Digital calipers have both metric and imperial settings. Because of this, they're superior to manual calipers for speed and accuracy. When paired with our sizing chart, you'll never buy the wrong size again! Not pictured: these calipers come with a case to keep them in safely for storage and travel. To learn how to use your brand new digital calipers, check out this episode of on IGTV. It covers measuring length, diameter, gauge, and bead sizes. Show us your jewelry once you get it in with #BodyModsFamous on Instagram. We LOVE seeing our products at work out there in the real world. Finally, don't forget to follow us on and for updates on new jewelry, product info, sales, and more.