These alphanumeric stamps have six bands of numbers, letters, and punctuation marks that can be configured in any combination for custom messages or identification processes. They can be used with ink pads to name, date, and number business documents such as purchase orders and invoices. Alphanumeric stamps have bands of numbers, letters, and punctuation marks that can be configured in any combination for custom messages or identification processes. They're used to name, date, and number business documents like purchase orders and invoices. This listing is for each. Technical Specification Item Alphanumeric Stamp Number of Bands 6 Material Metal Imprint Area Height 3/16 in Imprint Area Width 1 1/4 in Character Height 3/16 in Font Helvetica Neue & ITC Bookman Std. Overall Height 1 3/4 in Overall Length 8 1/2 in Overall Width 1 3/4 in