External Internal Finger Ring Sizing Sizer Mandrel US Ring Sizing Finger Gauge: 1, -1, 2, -2, 3, -3, 4, -4, 5, -5, 6, -6, 7, -7, 8, -8, 9, -9, 10, -10, 11, -11, 12, -12, 13, -13, 14, -14 and 15 Ring Gauge: 1 to 15 Over All Dimension Storage Box: 15-1/2" x 5-3/4" x 1-1/2" Quantity: 1