For more than forty years U.S. Stamp & Sign has led the industry with a steadily growing list of innovative identification products. Their wide range of offerings include top quality stamps, business stationery, custom signage and much more for the home, office and small business markets. As the inventor of pad-free stamps, U.S. Stamp & Sign has helped both small and large businesses by providing easy-to-use products at an affordable price. The U.S. Stamp & Sign Trodat Professional Self-Inking 6 Digit Number Stamp is perfect for heavy-duty office use. With the sturdy steel frame covered by an ergonomic plastic, this self-inking black stamp stands up to intensive, repetitive use in all of your numbering jobs. It delivers up to 10,000 impressions before the stamp pad needs to be replaced. The stamp impression size measures 3/8 x 1-5/8 inches. U.S. Stamp & Sign is proud to provide the professional tools to maximize everyday communication.