The product is a set of 4″x8″ metallic matte mailers shipping padded bags envelopes in a gold metallic color. These envelopes are made in China and are not a custom bundle. They are a unit of one model, designated as #000. These mailers are designed for packaging and shipping materials and are ideal for businesses and industrial use. The metallic matte finish adds a touch of luxury to the envelopes, making them a stylish and functional choice for sending letters, documents, and small items through the mail.