JetSir Compatible ink refill kit for HP 952, Use on HP Officejet pro 8720 8710 7740 8740 8210 Ect ink types: pigment ink for hp 950, prefect print effect environment friendly materials, responsible for environment low price but high quality, rigorous factory testing before delivery ISO-9001 and CE, MSDS certificate approved, 12 months warranty complete supply chain, we also offer the CIS system and cartridges