Check the listing for details. 10Pack Dental Orthodontic Niti Thermal Activated Rectangular Arch Wire 18X18 U/L. Condition: New. Listed at 20.88 USD. Thermal Activated Niti Dental Orthodontic Arch Rectangular Wire (Total 10packs,10pcs/pack) Model: 18X18 Upper&Lower Material: Thermal Activated Niti Type: Rectangular Wire Available Model: 14X25 Upper&Lower 16X16 Upper&Lower 16X22 Upper&Lower 16X25 Upper&Lower 17X22 Upper&Lower 17X25 Upper&Lower 18X18 Upper&Lower 18X22 Upper&Lower 18X25 Upper&Lower 19X25 Upper&Lower 20X20 Upper&Lower 21X25 Upper&Lower Notice: If you want to change model,pls leave us a message. Feature: Extra smooth finish reduce friction, Make the patient more comfortable. Higher elasticity with lower rigidity. Gentle & consistent recovery force, Bring a much shorter therapeutic period. A soft easy manipulating wire at room temperature, and a fully resilient wire after inserted int 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. Folllowing are our detailed information, if any special request, you can contact us, we are the honest seller in China! Account Name: Mypowerdentist City: Zhengzhou State: Henan