ITN TJ9712 - Professional Jewelers Solid Steel Mandrel Ring Stick w/Groove and Smooth Handle 11½". The Grooved opening in the mandrel enables you to work on the inside of the ring while you hold the ring steady on the Mandrel. EZ-to-read marking graduated and round ring sizing, full U.S. standards measurement sizes 1-15, graduated in quarter sizes. Not just for sizing wedding rings, it will make an impressive presentation! Working with ease, convenience and accuracy is a sure way to ensure return on your investment. A must have for who Creates or Repairs Jewelry - Jewelry Store, Pawn Shop, Auction House or anyone looking for a quality sizer set to impress their customers. ed/hb