ImpressArt Premium Metal Stamps are manufactured specially for stamping stainless steel and other hard metals. Should any stamp become flat or dull the stamp will be replaced under ImpressArt s lifetime guarantee. ImpressArt s Newsprint metal letter stamps are old-fashioned and modern all at once. This classic, vintage style set- designed for easy readability- will ensure your stamped metal jewelry and crafts are read loud and clear, and that your works are nothing short of newsworthy. Each letter set comes in ImpressArt s sleek storage case. The case features labeled slots for each stamp to keep them organized and for easy access.