Professional-grade black ink cartridge refill kit designed for HP DeskJet 6620xi printers. This comprehensive refill solution includes everything needed to restore your compatible cartridges to full capacity. Kit contains 100ml premium black ink formulated for vibrant, long-lasting prints with excellent page yield. Includes cartridge cleaning solution to maintain print head performance and prevent clogging. The kit features a precision syringe injector for accurate ink application and a vacuum/refill apparatus for efficient filling. Packaged with powder-free latex gloves for safe handling. Compatible with standard HP DeskJet 6620xi cartridges. Note: Cartridges not included. Ideal for high-volume printing environments seeking cost-effective printing solutions without compromising print quality.