We manufacture two styles of stamps - Regular Stamps and Self-Inking Stamps. With regular stamps, you need to use an ink pad, where self-inking stamps have one built-in. You get a higher quality impression using a regular stamp. Still, self-inking stamps offer the convenience of cleanliness and speed, and the quality of the impression remains around B-level. Pre-inked stamps are those with a reservoir behind the stamp so you can refill it when needed.