Features: Easy to identify the chip, smooth printing, and the ink does not block the ink outlet. Solvent fast drying ink, please note it is inkjet not engrave so wait ink dry. The ink cartridge does not jam during use, and it will not cause damage to your printers. 42mL large capacity, can print about 800,000 characters, durable for long term use. Normal fast dry cartridge not high adhesion cartridge, so recommend you to print on carton box paper or simple plastic package, not to print on glass bottle, plastic bottle or some hard-to-stick materials. Specifications: Type: 12.7mm Quick-drying Ink Cartridge(BK42A-3) Ink: Solvent Fast Drying Ink Capacity: 42mL/1.4 ounce Colour: Black Lifespan: 6months Voltage：9.6V-10.8V Pulse Width:120~180mm DPI: 600DPI Printable Quantity: about 800,000 characters Length: Approx. 10cm/3.94inch Package Includes: 1x Ink Cartridge note: Suitable for no encrypted handheld inkjet printer, encrypted printer can not use directly. Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Due to the differences between different monitors, the picture may not reflect the actual color of the item.