Ensure efficient communication and provide clear labeling with the use of this "RUSH" office stamp. A durable, yet lightweight, plastic construction provides long-lasting use.A self-inking mount re-inks the die before each impression, making it ideal for quick, repetitive stamping. In addition, a unique, reversible (two-sided) ink pad doubles the life of the pad. Simply push it out, flip it over, reinsert and keep stamping! Each side of your ExcelMark ink pad initially lasts for thousands of impressions and is simple to re-ink and replace. A clear base on the mount allows you to always easily line up impressions.The Pre-inked mount offers the most precise impressions and longest-lasting life. This ExcelMark stamp will last for 50,000 impressions before re-inking is necessary. When re-inking, slide the ink cartridge out of the unit, add a few drops of ink into the openings, and slide the ink cartridge back into the unit. Stay organized with this ExcelMark Stamp today! RUSH impression ExcelMark A-1539 self-inking mount: 1/2" by 1-1/2" rectangle impression area and Reversible (two-sided) ink pad ExcelMark XL3-75E pre-inked mount: 1/2" by 1-11/16" rectangle impression area Color options include: Black, blue or red