Ring sizer or finger gauge made of alloy metal measures the size of your fingers for making rings. There are several sizes, ring size increments are clearly marked on each ring for full and half sizes. Fine workmanship With round outside and flat inside, smooth edges do not hurt your hands Ring calipers include 27, US ring diameters 0-13, with half size (negative numbers indicate half size) and no quarter size. Aluminum ring mandrel sizes are available in US sizes 0-13 and European sizes 41-76, 2 reusable 1-17 ring gauges Wrap the ring resizer around the ring, use as many loops as needed, and trim off the excess. Provides a secure fit for single or stacked rings Packaging Details: 1 * ring size; 1 * ring core shaft; 1 * polishing cloth; 2 * ring size measuring ruler; 4 * ring diameter regulator; 1 * zipper kit The ring sizer made of high-quality materials, soft and resilient, for a long service time, Weight: 0.90940683075 pounds, Manufacturer: YRREATY