This replacement pad is compatible with the Trodat 4916 self-inking stamp. It features water-based ink that is great for stamping on documents, flyers, non-corrugated cardboard, envelopes and more. It's available in black ink or dry pad options for you to choose from. It can even be re-inked with water-based ink for an extended lifetime. Not recommended for glossy and non-porous surfaces. Select your choice and then click the add to cart button!