Simply Stamps' Additional Postage Required Stock Stamp helps reduce the time it takes to complete tedious office tasks. Our business stamp leaves clean impressions on all of your business's envelopes, correspondence, invoices, and more.

• Self-inking "ADDITIONAL POSTAGE REQUIRED" stamp
• Rubber business stamp measures approximately ½" x 1 ⅖"
• Choose from our selection of stamp ink colors
• Self-inking stamp will leave thousands of crisp impressions before needing re-inking
• Optional ink refill bottles available