Invisalign Brand new, unused. Each bag contains both upper and lower aligners. These are aligners 19 through 31, for a total of 13 aligners. These are custom-made based on a scan of an individual's teeth, so they cannot be worn as they will not fit. The parts with personal information have been cut as shown in the photos. These might be useful for those studying orthodontics, those interested in Invisalign, those about to start Invisalign, or those who have some other use for them, such as for crafting. I have more, so I plan to list them as they become available.