Ribbon Cartridge: The Pyramid Time Systems Replacement ribbon uses Black Ink, ensuring clear and sharp prints every time. It provides high contrast, making the time card data easy to read and ensuring accuracy in time tracking. Airtight Sealed Construction: The Replacement Ribbon features an airtight sealed construction that prevents ink from drying out or leaking. This packaging ensures long-lasting ink quality, preserving its performance for extended use. Optimal Performance: To ensure Efficient performance, it Lasts 60% longer than Compatible Replacement Ribbon based on usage. Regular replacement guarantees clean, legible prints, maintaining the accuracy and reliability of your timekeeping. Quick and Easy Installation: Replacing the ribbon is fast and hassle-free. Simply follow the easy instructions to replace the old ribbon with the new one, minimizing downtime and ensuring your time clock stays operational. Authorized Replacement Ribbon: This Time Clock Ribbon is the Compatible for the 3500ss, 3550ss, 3600ss, 3700ss, 4000Pro, 5000, 5000HD Time Clocks. It ensures compatibility and reliable performance, preserving your time clock’s integrity.