The very best ring stretcher & reducer we have found in this price range. Polished and plated expanding mandrel is marked with ring sizes 1 to 15 and has 6 segments. Reversible reducing die has 16 countersunk, finely polished holes that perform a wide variety of reductions. Will not scratch or mar rings. Overall dimensions are 7" x 5" x 17" and four holes are provided in the base for securing it to a work bench. Furnished with instructions for use.