These durable time and date stamps are used by businesses worldwide and are suitable for most business environments. The E Series stamps are ideal for virtually and time, date or number stamping application. Easy to use: Inserting a document into one of these heavy-duty time stamps activates the sturdy automatic print mechanism, allowing convenient one-handed operation. Precision type wheels deliver a sharp clean imprint and can penetrate multiple copies. These stamps provide an efficient, cost-effective way to register year, month, date and time on important documents such as incoming mail, purchase orders and shipping/receiving documents. The E Series stamps" heavy-duty construction withstands harsh environments and hundreds of print registrations per day. The units are rust and corrosion resistant and are made in the USA. This product carries a full one year manufacturer"s warranty.