Ring Bending Tools, Ring Bender, Jewelry Ring Bender, Chrome Steel with Nickel Plating, 5 Mandrels: 0.47/0.55/0.63/0.79/0.87in, 90° & 45° Square Posts, Compact 9.9x5.9in, Wood Base, for Soft Metal Rings, Earrings, Gold, Silver, Copper