• Calculator ink roller-- it can bring much more conveniences in your work or study time.
• Useful ink roller-- it can be absorbed evenly by ribbon and keep good humidity.
• Calculator ink wheel-- the compatibility is high, suitable for many kinds of printers.
• Calculator ink ribbon-- avoid use this ink wheel in terrible temperatures, dusty or wet conditions.
• Red ink roller-- compatible with -123 -120 caculator, specially designed.

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