Stainless Steel. Available in 4 loop options, these archwires will ensure accurate placement every time. Made from medical grade 304V stainless steel these wires feature bright, smooth, flat surfaces. The consistent shape will ensure your patients of great results every time. Used in sliding mechanics for extraction space closure and also in non-extraction Class II cases. Commonly used in combination with elastics or closed coil springs. Biocompatible, able to place and hold intricate bends, consistent force, and superiortensile strength. Pack of 10.