Self-inking stamp prints the words "CLIENT COPY" in red. Design includes high-quality casing mechanism and long-life, replaceable, ink pad cartridge. Replacement ink cartridges (sold separately) make changing ink colors easy. Cartridges are nontoxic and water-based, providing hundreds of thousands of crisp, clean impressions. Self-inking stamp contains post-consumer recycled material. All recycled materials are certified free of lead, cadmium and other heavy metal contaminants.