Check the listing for details. Dental Arch Wire Thermal Activated/Super Elastics Niti/Steel Rectangular/Round. Condition: New. Listed at 0.99 USD. Feature：1.10pcs/pack2.English Package3.Used For Dental orthodontic treatment4.Material: Super Elastic NITI/Thermal Activated/Stainless Steel5.Type: RoundSize Option:0.012 upper; 0.012lower0.014 upper; 0.014 lower0.016 upper; 0.016 lower0.018 upper; 0.018 lower0.020 upper; 0.020 lower14x25 ( 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 )Package including：1 Pack(10 Pcs)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.