This replacement pad is compatible with the Trodat 9425 self-inking stamp. It features water-based ink which is great for stamping on documents, flyers, non-corrugated cardboard, envelopes and more. Create colorful stamp impressions when you use this pad by picking from the 11 available ink colors. It can be easily re-inked with water-based ink for continuous use. Not recommended for glossy and non-porous surfaces. Select your ink color and then click the add to cart button!