This ink ribbon is specially designed for use with Oki Microline 380/390/391 and 390/391 Turbo Okimate 240 printers. It is a genuine/original product and is compatible with model numbers 590/591. The expiration date of the ribbon is unknown, but it is brand new and unused. Use this high-quality ink ribbon to produce crisp and clear prints with your Oki printer. The ribbon is easy to install and offers long-lasting performance, making it an ideal choice for anyone who values quality and reliability. It is perfect for use in environments where high-quality printing is essential, such as offices, schools, and businesses.