New ink pads that are suitable to fit numerous Trodat Printy rubber stamp models 4924 4940 4724 and 4740. The ink is manufactured with a water base and contains no toxic substances no acid no formaldehyde and no heavy metals. 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 64924 replacement ink cartridge is available in black blue green red violet and dual coloured redblue ink pads...