Material: Nickel titaniumRound StlyeNature Form Size Opotion: 0.12 Upper, 0.12 Lower0.14 Upper, 0.14 Lower0.16 Upper, 0.16 Lower0.18 Upper, 0.18 Lower0.20 Upper, 0.20 Lower The natural curvature of the arch wire is closer to oral cavity space, which will save the doctor's time.10 Pieces/PackPlease note the

size in your order, or we will deliver randomly. Thanks for your understanding! FDA StatementThe 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.Seller name:dr.baistraCity,State:SHENZHEN,ChinaTelephone number:0755-32870423