The Seiko CPT1024NB black calculator ribbon ensures crisp, long-lasting prints on calculators with printers. Composed of two spools of 13 mm wide, 6-meter long nylon ribbon impregnated with high-density black ink, it ensures well-defined characters on thermal or regular paper rolls. The high-strength nylon prevents fraying during rapid machine feed. It is indispensable for accounting offices, shops, and cash registers.