Check the listing for details. AZDENT Dental Orthodontic Stainless Steel Rectangular Arch Wire Natural Form. Condition: New. Listed at 0.99 USD. Orthodontic Stainless steel Arch Wire (rectangular) 1. 10pcs/pack2. English Package3. Used for Dental orthodontic treatment4. Material: Stainless steel5. Type: Rectangular6. Natural Form Size Opotion: 0.016x0.016 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 The natural curvature of the arch wire is closer to oral cavity space, which will save the doctor's time.Please note the size in your order, or we will deliver randomly. Thanks for your understanding! 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. Seller name: Dentaltree City,State:SHENZHEN,China Telephone number:0755-66587593