Porelon 11205 PR72 Compatible Calculator Ink Roll, Replaces Manufactures Parts CP-7, IR-72, EA-720R and 75220, 1 Pack Vivid and consistent color - Black, Exceptional light fastness and durable impressions Replaces manufactures part #'s CP-7, IR-72, EA-720R and 75220 Compatible calculator ink roll. This product has been designed and manufactured to operate the original equipment identified, and will not void your equipment warranty. One year (12 months) warranty from date of purchase