37 Piece Metal Stamp SetLetter number and symbol stamp set includes 26 capital letters A to Z, numbers 0 to 8 (6 and 9 are interchangeable) and symbols "&" and "". Letter Punch Set SizeAlphabet, number and symbol are about 1/8" (3mm) in diameter, letter and number punch set 1/4''(6mm) wide, 2.36''(60mm) long. Durable MaterialMetal stamping kit are made from high quality iron for strength and hardness. These attributes reduce wear and tear and ensure that these stamps punch press tool are durable. Personalize Letter Stamp Set Personalize your handicrafts, jewelry, cards, leather decorations etc with these metal stamp number & letter punch set. Punch number set is a practical tool set for craft enthusiasts. Wide ApplicationLetter stamping tool set is very suitable for imprinting marking on materials such as metals, plastics, leather and wooden objects. The surface of the 3mm symbol punch set may contain some oil that protects it from rust.