The five-piece Artistic Wire Plastic Mandrel Set offers unparalleled versatility when it comes to shaping wire for jewelry making projects. With four different shapestriangle, square, round, and ovaland a stepped mandrel design that provides a total of 46 different sizes, you can consistently create anything from small jump rings and tightly wound cones to wrapped pendants and elegantly curved ear wires. - Artistic Wire Plastic Mandrel Set.