Its gold micro-adjustment dial with red and clear imbedded stones enhances the super smooth feel. The rings now have our new gel inserts with sparkles for improved comfort and fit. The blades are made from hot-forged 440C stainless steel with a Rockwell hardness of 60c. No other convex hollow-ground blade will hold an edge to these. Packaged in a leather zipper case. Free Lifetime Factory Sharpening.