Built-In Stamp Pad: Shiny self-inking rubber stamps offer a built-in stamp pad that provide thousands of fast repetitive impressions before re-inking is needed. Easy Pad Release: Re-inking your stamper is a breeze; simply push down on the top of the stamp and apply pressure to the pad to release it from the stamper. Supreme Ink: Shiny Supreme water-based red ink creates vibrant impressions; the stamp pad can easily be re-inked which is a cost-effective way to extend the life of your stamper. Teacher Stamps: Shiny R-517 teacher stamps feature a clear base and slip resistant rubber feet making them ideal for many applications, including office, retail and more. Mechanically Tested: While you will need to re-ink your self-inking stamp, rest assured that the mechanical components have been tested to achieve over 1-million impressions