This smooth tapered steel mandrel is designed for creating cuff bracelets and oval bangle bracelets. With a taper from 2-1/8"x3" to 1-1/4"x1-3/8" (55x75 - 30x35mm), a wide variety of sizes are possible. For best results, work harden the metal in desired size from one direction, then flip the bracelet around and work from the other side to produce an evenly oval shape.