Product description: 1oz (30ml) Dye base Cyan ink for Epson T034220 or T0342 cartridges.1oz (30ml) Dye base Magenta ink for Epson T034320 or T0343 cartridges.1oz (30ml) Dye base Yellow ink for Epson T034420 or T0344 cartridges.1oz (30ml) Dye base Photo Cyan (light Cyan) ink for Epson T034520 or T0345 cartridges.1oz (30ml) Dye base Photo Magenta (light magenta) ink for Epson T034620 or T0346 cartridges.The bottles comes with a needle for easy filling. No need to use syringes anymore. For use on Epson Printers: Epson Stylus Photo 2100 Epson Stylus Photo 2100P Epson Stylus Photo 2200 Aren't sure if you wish to get dye based ink or pigment based ink? Read the following facts: Pigment based ink is more water resistant. When submerged in water, pigment based ink only bleed 5~15% while dye based ink can bleed 85% Pigment based ink is less likely to fade over time. Our archival pigment inks' printouts can be stored for over 100 years without significant fading. Dye based ink may fade within years Dye based inks are slightly more vibrant in color. Dye based black ink is a little bit darker than pigment based black ink. Dye based inks are significantly cheaper than pigment based inks. Dye based inks are compatible with almost all inkjet printer models while pigment based inks can't be used with some printers. We do NOT recommend mixing dye based inks and pigment based inks. If you want to try our refillable cartridges and pigment based inks, please order empty refillable cartridges and pigment based inks. Our pre-filled refillable cartridges are prefilled with dye based inks so they can only be refilled with dye based inks.