Disciplined development, innovative production and outstanding service have positioned Porelon as the leading manufacturer of specialty inks, gels and microporous foams used for 30 years in the marking and identification of products. The Porelon PR40 Calculator Ink Roll replaces manufacturer part numbers CP-16, IR20, IR40, EA-770R, IR55030 and 013109. This roll offers a vibrant and even black colour alongside exceptional lightfastness and long-lasting impressions. This product is designed and manufactured to operate the original equipment labeled. Through constant product improvement, Porelon is committed to its customers a variety of quality products at an exceptional price.