The product is a set of two uncirculated banknotes from Macau, one from the Bank of China (BOC) and the other from the Bank of Macau (BNU), both issued in 2018 to commemorate the Year of the Dog. Despite being from different banks, they have the same last four numbers, making them a unique pair for collectors. These bills are from Macau and have not been certified, making them a rare and sought-after addition to any paper money collection.