The Biometric Impressions Black Ink Pad will not dry out and the ink dries on the paper or card very quickly. Its crisp, clean and doesnt smear. Use it when accuracy is important. Notary publics need reliability for for legal documents including deeds and contracts. Landlords and employers need a good ink pad when theyre doing background checks on employees and tenants. Law enforcement uses it for fingerprinting. If you take fingerprints - you need this inkpad.