Professional HP 4504 compatible ink refill kit designed for high-quality photo and document printing. Kit includes: 4x50ml premium DYE ink bottles (Cyan, Magenta, Yellow, Black), vacuum cartridge apparatus, 4 refill syringes, cleaning picks, and 50 sheets 10x15 photo paper. Formulated for professional photographers worldwide, these aftermarket inks deliver exceptional color vibrancy without clogging printheads. Page yield: approximately 100 A4 pages per dollar spent. Features fade-resistant formula ensuring long-lasting print quality, ideal for high-resolution photo printing and office use. Compatible with refillable cartridge systems and continuous ink supply systems. Achieve premium printing results at minimal cost without compromising quality.