Specifications: Item name: Metal stamping kit Material: Steel, plastic Letter punch specification: 1/8" (3mm) Package weight: 1.45lb Package list: 1 26pcs 1/8" (3mm) uppercase letters 1 9pcs 1/8" (3mm) numbers punches 1 "?" 1/8" (3mm) symbol punch 1 " " 1/8" (3mm) symbol punch ?Professional Metal Stamping Set?- You will immediately enjoy the DIY metal stamp set! It includes 37pcs 1/8" (3mm) punch set, including "A-Z" letters, "0-9" numbers, a " " and "?" symbol punches. ?DIY Art Stamp Punch?-The same artistic font punch set can freely form continuous phrases and digital imprints to create unique and fashionable hand-stamped jewelry and craft components, such as rings, bracelets, necklaces, earrings, keychains and pendants. ?Easy to Use?- The stamping set is suitable for permanent marking on materials such as brass, steel, plastic, leather, paper, aluminum, silver and stainless steel. Use with a hammer to engrave a variety of commemorative names or numbers on materials including jewelry. ?Premium Material?- The letter punch set is made of premium high-carbon steel material, which is wear-resistant, long-lasting, and very durable. All stamps are produced to a high standard with accurate dimensions and clear strokes. The surface of the product has been polished. ?Easy to Store?- All products are packaged in a sturdy and beautiful plastic box, which is very convenient to store and carry.