This black ribbon is a great addition to your MK9 Marking Machine by Partex. It is compatible with the LM-370A model and comes in a pack of 5 pieces. The ribbon is made in Japan and is perfect for all your printing and graphic arts needs. It is a high-quality product that will ensure your sign making supplies are top-notch. The brand Partex is known for its reliability and durability, making this ribbon a great investment for your business.