Invisalign Brand new, unused. Each bag contains both upper and lower aligners. Aligners 26-37, with some missing, for a total of 9 aligners. These are custom-made based on a scan, so they won't fit as the molds are not compatible. The parts with personal information have been cut as shown in the photos. Ideal for those studying orthodontics, those interested in Invisalign, those about to start, or those who may have other uses for them. More are available, and I plan to list them as they become available.