Reinkers are primarily used to reink or refresh a coordinating ink pad to extend the life of the pad. To reink any type of ink pad you simply add a few drops of ink from the reinker bottle onto the stamp pad and spread. Some other uses for these small bottles of ink include pouring a few drops into a palette to paint, watercolor, or splatter with. Mix a few drops of reinker ink into other mediums such as texture paste, clay or resin to colorize and/or to marbleize.