Happy Hours - New Sizes 2 to 15 in 1/4 Size Increments Silver Ring Sizer Gauge Finger Sizing Measuring Stick Metal Ring Mandrel US Size + 31 pcs Ring Sizer There are 4 kinds of measurement on the stick , 1-15 is American type Great for Jewellers, Ring Makers, Hobbyists, Craftsman etc Grooved on one side to prevent chipped stones There are 4 kinds of measurement on the stick , 1-15 is American type. Great for use on glass showcases