Description： PH：6-8 Stability：No settling in 3 years (at normal storage) Temperature：-20°C no frozen and 70°C no gelling Light Fastness：5-6 BWS Water Fastnes：3 (Average) PG-240 210: Each black ink bottle can refill up to 6 times CL-241 210: Each bottle can refill 6 times. Capacity：25mlPackage Contains: One bottles Black ink. One bottle Cyan ink. One bottle Magenta ink. One bottle Yellow ink.