The 2000 PLUS® R40 Self-Inking Round Stamp With Microban®. Microban® inhibits the growth of microbes, such as stain- and odor-causing bacteria. Constructed for high-speed stamping. Fresh ink is applied to the stamp with every impression. Re-inkable for less waste. Up to 5,000 impressions per pad before re-inking. The impression is 1-5/8” diameter and is ideal for professionals. The self-inking stamp comes in black ink unless BLUE or RED is specified in the “Special Instructions” box below.