Ink Roller Black & Red #IR-40T
- These ink cartridges are the industry standard and compatible with almost all standard printing calculators and adding machines.
- Comes with two colors: Black for addition and Red for subtraction.
- The cartridges are high quality and long-lasting.
- Ink resists fading and makes your prints look sharp and vibrant.
- Takes less than 30 seconds to install. Refer to your machine’s instruction manual for further instructions.