The Vivid Stamp Q-400 is a self-inking stamp with a bold "PAID" impression in blue ink. Designed for efficiency, it features a durable blue plastic casing and an automatic re-inking mechanism, making it perfect for marking invoices and documents quickly and mess-free. Saves Time & Effort – Quickly mark invoices and documents without writing manually. Professional & Clear Marking – Ensures a bold, easily visible "PAID" impression for record-keeping. Mess-Free & Reinkable – Self-inking design with a reinkable pad eliminates the need for separate ink pads. Precise & Easy Alignment – Transparent bottom allows for accurate stamp placement every time. Provide clear communication and instruction with the use of this PAID self-inking rubber stamp. This stamp is great for home and office use. Self-Inking technology aids in rapid and repetitive stamping use. Stamps are easy to re-ink using a few drops of ink.