Pre-filled ink bag for Seiko 64/100 (s) with1,000ml of ink and chip. Re-use the plastic shells of your used cartridges and save money! It takes only 1 minute to change out a bag in a cartridge. This a low-cost alternative to expensive OEM cartridges without sacrificing the quality. The ink is fully mixable with OEM one, so the ink lines don't need to be flushed. Ink is packaged with our proprietary degassing technology. It's guaranteed 100% air free, which results in very consistent printing, higher quality, less cleaning and less waste.