Made from high-quality casted steel, this mandrel is ideal for shaping, forming and sizing metals and other materials to create bracelets, cuffs, bangles and other curved elements. Measures 12" in length, and it tapers from 2.7" (bottom) to 1-1/2" (top) in diameter. Essential for Jewelry Repair and Jewelry Making. Please contact us with any questions. Please visit our store for other great jewelry tooling items such as; Hand Stamps, Disc Cutters, Polishing Compound, Buffers, Hammers, Tweezers, Mandrels, Anvils, Vises and more! Thanks for Looking!