The ink cartridge can be inserted either from the front or the back side of the stamp. Slightly press the stamp and delicately push the used ink cartridge out to remove it. Then insert the replacement. Precise impression positioning Strong and Durable Due to the larger & smoother wheels & wide clearings there is more distance between your fingers and the bands with ink, keeping your fingers clean at all times. The Grip Zones on the side provide a better handling. While the design is smaller and lighter than its predecessor. Water based stamp ink fulfilling requirements for indelibility according to DIN ISO 14145-2. Awarded with the Austrian Ecolabel in the impression colors black, green and red in environmentally friendly packaging