Check the listing for details. 10*Dental Orthodontic Super Elastic Niti Rectangular Arch Wire 16*22 Upper&Lower. Condition: New. Listed at 13.29 USD. Specification 1.10pcs/pack2. English Package3. Used For orthodontic dental treatment4. Material: Super Elastic NITI5. Type: Rectangular,Ovoid (Natural Square can be choose) We have sizes of0.016x0.016 upper, 0.016x0.016 lower0.016x0.022 upper, 0.016x0.022 lower0.017x0.022 upper, 0.017x0.022 lower0.017x0.025 upper, 0.017x0.025 lower0.018x0.022 upper, 0.018x0.022 lower0.018x0.025 upper, 0.018x0.025 lower0.019x0.025 upper, 0.019x0.025 lower0.021x0.025 upper, 0.021x0.025 lower one pack just include one size, not mixed packOn Mar-30-18 at 20:16:11 PDT, seller added the following information: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. This item has been cleaned and treated according to the manufacturer's instructions