Model：Standard, MBT, 022″Slot, Hooks3-4-5. we will send you Standard MBT Slot.022 Hook 3-4-5 just like the picture. Roth/Edgewise / MBT. Dental Orthodontics Brackets Braces. The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies.