2PK x 100ml - INKUTEN HP Refill Dye Black Ink for HP 901 901XL 901 901 XL ink cartridge with syringe Package Include: 2 Bottles,100ml/bottle (2 Black) Premium Dye Ink, 1 syringe with needle. Works Best with HP 901 901XL Series Refillable Ink Cartridges, and CIS Systems (CISS). Officejet 4500 G510a 4500 G510g 4500 G510n J4500 J4524 J4540 J4550 J4580 J4624 J4640 J4660 J4680 J4680c This kit may refill your cartridge many times over and over again. This ink is designed to give you results equivalent to the original in all aspects: color, fade resistance, smudge resistance, etc.. This USA-made ink is proven to reliably perform on all papers including glossy. The ink is perfectly color matched to the original and is designed with the same viscosity and surface tension to assure an adequate flow through your printheads