Ring Finger Gauge Square Edge 1-15 USA Standard

Classic set of ring finger gauges with 29 individual rings marked with USA standard sizes from 1 to 15 with half sizes Half sizes are marked with a minus sign (size 6-1/2 is indicated with the marking 6-). The other side of each individual ring is marked with the inside diameter of the ring in millimeters (size 6-1/2 is marked 16.9 for 16.9mm inside diameter).