Cartridges are also available as dual colour red and blue, which are suitable for the daters only.
The replacement ink cartridges are available in 5 standard colours - black, blue, red, green and violet..The ink is hygroscopic, meaning that it self regulates by absorbing the humidity of the surrounding air so that it does not dry out, allowing prolonged usage. Trodat Replacement Ink Cartridge 6/58 - pack of 3 Fits Trodat Professional rubber stamps: 5208, 5480 and former models 4208, 4480 and 4258.