This 1L bottle of black conductive ink by Working Ink is a must-have for your printing needs. It is compatible with various printer models and is perfect for anyone who needs to refill their ink cartridges. The ink is of high quality and produces clear and sharp prints, making it ideal for both personal and professional use. With this refill bottle, you can save money and reduce waste by refilling your cartridges. Get your hands on this top-quality conductive ink and enjoy printing without any worry.