This replacement pad is compatible with the Trodat 4630 self-inking stamp. It features water-based ink that is great for stamping on documents, flyers, non-corrugated cardboard, envelopes and more. Pick from our 11 ink colors when you order this pad and enjoy thousands of vibrant impressions. Re-ink it 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!