The product is a 2 pack of Invisalign teeth aligners braces retainers, specifically models #12 and #11 out of 12. Made in the United States, these retainers are ideal for arts and crafts projects involving teeth aligners. Perfect for creative individuals looking for unique and functional materials for their projects, these Invisalign retainers offer a sleek and discreet solution for aligning teeth 4 pcs total in two packs