The natural curvature of the arch wire is closer to oral cavity space, which will save the doctor's time.
One pack just includes one size, not mixed pack.
Package:10 Pack 016*016 Upper
Please leave us messge if you have other requirements .
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