This product is a set of two sequential $20 star notes from 2017 with serial numbers PK08854686 and PK08854687. The notes are barely circulated and crisp and have a star symbol next to the serial number, indicating that they were replacements for damaged or misprinted notes, which is rare on its own, but to have TWO sequential numbers with serial numbers all between 4-8 is what makes them really special!