No sponge Refillable Ink Cartridges set compatible for HP printers. They are made of clear frosted plastic. You can see the ink level on the inside at a glance. Each cartridge has an Auto Reset chip. They are brand new, virgin, not recycled or re-manufactured which can be used over and over again. These cartridges can help you to save lots of money on printing not only black copies but also color copies.

Empty Refillable Cartridges without Ink and Syringe.

Cartridges:

HP 10 C4844a,

HP 11 C4836a

HP 11 4837a

HP 11 4838a

Compatible with the following HP Printers:

HP Business Inkjet 1000 1200 2000 2200 2250 2230 2280 2300 2600 2800 1300 cp1700, HP OfficeJet 850 850dn 9100 9110 9120 9130, HP Designjet 70 100 100ps 100Plus 110 110Plus NR printers.