MBT 0.022/Roth 0.022/Roth 0.018. 20 sets per box, in total 1 box (80pcs). The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory. If the item is subject to FDA regulation, I will verify your.This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical, Lab & Dental Supplies\Orthodontic Brackets, Bands & Buccal Tubes". The seller is "dentalbaistra" and is located in this country: CN. This item can be shipped worldwide.