ND &trade; Brand Dinsink: 250ml 10oz Pigment Black refill ink kit for HP 15 45 ink cartridge: Deskjet 810 810C 812 812C 825 825C 825Cvr 840 840C 841 841C 842 842C 843 843C 845 845C 845Cvr 920 920C 920Cvr 940 940C 940Cvr 3820 ...The item with syringe and detail refill instruction.The item with ND Logo! ND Brand refill ink for HP 15 ink cartridge The item comes with detail refill instruction. You can refill ink for your original ink cartridge. It is a big saving. Highest UV resistant rating on market 10OZ Pigment Black ink This ink quality is same as OEM ink