New Gold Ring Mandrel & Sizer Graduated Round Ring Mandrel This is a new graduated ring mandrel This is an essential tool for the jeweler, goldsmith, silversmith and metal worker This elegant brass colored metal ring stick can be used to determine the size of rings Has sizes 2 1/2 to 14 in half sizes This stick measures 11 3/4" (298 mm) long. Finger Gauge This is a new finger gauge The gauge is made of die struck steel This set measures finger sizes 1 to 15 in 1/2 size increments