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.