Express Yourself with PMC Add initals, names or messages of hope, friendship and love. Get creative in metal clay with premium metal stamps. Metal clay artists prefer metal stamps to rubber, for clearer designs and no distortion. Each stamp measures 1/4". They are easy to clean and can be reused over and over again Set contains one of each letter of the alphabet. Necklace and pin below by Delphi PMC Certified Expert and Instructor Michele Drobney.