Check the listing for details. Dental Orthodontic Super Elastic Wire Niti Rectangular Arch Wires Natural Form. Condition: New. Listed at 10.62 USD. 10 Pieces Wires / bag(pack) Dental Niti Super Elastic Arch Wires Rectangular Orthodontic Natural Form Supper Elastic NiTi Wire Arch Form: Natural Form Rectangular Ni-Ti Alloy Dental orthodontic use only. If Choose Mixed Size, please remember to leave messages to us, thank you Available sizes: 14X25 Upper&Lower 16X16 Upper&Lower 16X22 Upper&Lower 16X25 Upper&Lower 17X22 Upper&Lower 17X25 Upper&Lower 18X22 Upper&Lower 18X25 Upper&Lower 19X25 Upper&Lower 20X20 Upper&Lower 21X25 Upper&Lower 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, you can bid on this item only if 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