This 1/4 inch alpha/numeric stamp set is made from tough zinc for heavy duty, everyday stamping of names and initials and numbers on all your handcrafted leather projects. Includes letters A-Z, numerals 0-9 and a stamp handle. Just dampen your tooling leather and insert the handle into the letter stamp and or number stamp. Put your leather on a smooth solid surface and tap the tool handle with a wooden or rawhide hammer to imprint your leather.