Check the listing for details. Multi Mandrel to Make Your Own Oval Round Square Triangle Wire Shapes Bead Smith. Condition: New. Listed at 9.93 USD. Multi Mandrel - wire mandrel, wire shaping tool makes 4 shapes in over 40 sizes. Make beautiful wire objects for jewelry projects (jump rings, toggle, pendants, earrings and more), home accent pieces and scrap booking embellishments. Easy instructions included on back. This tool has a handle and four plastic interchangeable shapes. The shapes you can make with this fantastic mandrel tool are squares, triangles, circles and ovals. Sizes are approximately as follows: Square from 5.5 mm to 25 mm. Triangle from 7 mm to 30 mm. Circle from 6 mm to 27 mm. Oval from 5 x 10 mm to 23 x 28.5 mm. *Wire not included. *Please consider the actual sizes given in the listing as the pictures are generally enlarged to show detail.