Strong and fast to tackle even the biggest numbering jobs. Steel frame construction stands up to heavy-duty use. A self-inking pad saves time—there's no need to stop and re-ink. Includes replaceable stamp pad that delivers up to 10,000 impressions. Six-Digit Numberer—Type Size: 1 1/2. Stamp Type: Numberer; Ink Types: Self-Inking; Impression Width: 1.63"; Impression Height: 0.38".