Check the listing for details. 5 Packs Dental Orth Reverse Curve Rectangular Arch Wires Super Elastic NITI. Condition: New. Listed at 8.69 USD. Dental Orthodontic NITI Reverse Curve Arch Wires (Rectangular)Super Ductility and Strength Combination, Suitable for Various Complicated InstanceWith Constant Elasticity, the Curative Effect is More RemarkableAdvanced Surface Smooth Process Brings Long Fatigue LifeUse: For dental orthodontic treatmentMaterial: NITI AlloyPackage: 2 pcs/packSize Option:1616 Upper 1616 Lower 1622 Upper 1622 Lower 1722 Upper 1722 Lower 1725 Upper 1725 Lower 1822 Upper 1822 Lower 1825 Upper 1825 Lower 1925 Upper 1925 Lower 2125 Upper 2125 LowerPackage:5 Packs 10Pcs FDA Statement The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.