The Genuine OEM Smith Corona H Series 21000 Correctable Typewriter Ribbon - 2 Pack is a high-quality typewriter supply specifically designed for the Smith Corona H Series 21000 typewriter model. This ribbon is a correction film type, making it ideal for correcting errors while typing. As an official Smith Corona product, it ensures compatibility and reliable performance for your typewriter needs. Perfect for businesses and office environments, this ribbon pack is essential for maintaining the functionality of your typewriter for crisp and clear printing results.