1、You can using for metal marking needs, jewelry and art on leather work, wood material etc 2、Includes a handy storage box for easy storage and transportation 3、Hardened and tempered with sandblasted finish 4、Our number letter stamps are manufactured from carbon steel, fully forged and tempered 5、Is a practical tool set for handcraft lover, and easy to use Features: You can using for metal marking needs, jewelry and art on leather work, wood material etc. Includes a handy storage box for easy storage and transportation. Hardened and tempered with sandblasted finish. Each punch is about 60mm in length with numbers & letters 3mm high. Is a practical tool set for handcraft lover, and easy to use. Our number letter stamps are manufactured from carbon steel, fully forged and tempered. Specifications: Material: high carbon steel Word height: 3mm(1/8") Length of punch: 60mm Letter: Sets of 27 capital letter stamps A to Z and "&". Number: Sets of 9 Arabic numerals stamps 0 to 9.("6" same with "9") Package Included: 1 x set of stamps("0"to"9" or "A"to"Z"+&)