Comes as a multi pack of three. 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. The replacement ink cartridges are available in 5 standard colours - black, blue, red, green and violet. Cartridges are also available as dual colour red and blue, which are suitable for the daters only.
The ink is manufactured with a water base and contains no toxic substances, no acid, no formaldehyde, and no heavy metals.. New 6/511 ink pads are available in an array of colours: black, blue, green, red or violet. As well as dual colour red and blue pads, which are perfect for date stamps.
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.