Remove the holder from the stamp. Use the ink bottle to add five drops of ink to each refill hole in the stamp. Put the holder back on the stamp. Immediately after refilling the ink, keep the stamp facing down until the ink begins to flow from the stamp. After refilling the ink, be sure to put the cap back on the refill ink bottle.
Be extremely careful when adding ink! Do not use ink other than that specified, otherwise the stamp may be damaged. If too much ink is added, it may start leaking from the stamp's surface. In that case, make a test stamp on scrap paper to remove any excess ink.