These are Chikawa New Year's money envelopes purchased in Taiwan. Besides being used as New Year's money envelopes, they can also be used as congratulatory envelopes or small money envelopes. They are licensed products from Taiwan (with the © mark). Bills can be inserted without folding them. There are 4 envelopes in a pack. Since the contents of each pack are different, I have opened them and taken photos of the actual items. Therefore, the package has been opened. Please only purchase if you don't mind. m(._.)m