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 Ink Cartridges without Ink and Syringe.

Cartridges: HP 10K, HP 82C, HP 82M, HP 82Y, HP C4844A Black, C4911A Cyan, C4912A Magenta, C4913A Yellow

Compatible with the following HP Printers:

HP DesignJet 500 500ps 800 800ps 815mfp