This replacement pad is compatible with the Trodat 9511 self-inking stamp. It features water-based ink that is great for use around the office or at home. Add some color to your stamp impressions when you choose one of our 11 available ink colors. It can be re-inked with water-based ink for extended use. Not recommended for glossy and non-porous surfaces. Select your ink color and then click the add to cart button!