Refill ink for Canon BCI - 325 PGBK, BCI - 326 Ink Tank and BCI - 320 PGBK, BCI - 321. Ink Tank is a 5 color set corresponding to multi x refilling ink of 5 times each. Reasonable refill ink makes it possible to significantly reduce the running cost of inkjet printers. Special tool that can easily open the injection port without putting strength is attached. We adopt our own developed ink "tolerance ink" excellent in light fastness and ozone resistance, realizing a beautiful finish strong against discoloration. It is possible to refill the ink at ease, it comes with a very easy to understand instruction manual. ELECOM Co., Ltd. is a Japanese electronics company, headquartered in Osaka, Japan. They are best known for their modern design, especially with their mice. The company produces many electronics along with other Japanese computer-peripheral manufacturers such as I-O Data, Buffalo, and Century micro that are shipped to many outside and larger companies, as an OEM (e.g. Century Micro is known to ship their memory chips to Samsung.) In recent years, its business has been expanded into new areas, including: supplies of tablet PCs and smartphones, health care products such as body composition scales and electric therapy equipment, and the digital home area, with an enhanced development of network products such as wireless LAN routers, a cloud service and an installation service for wireless LAN access points. The ELECOM group sets out to create new markets by aiming for the new comfortable space of smart home realizing product development and sales with the concept of a "Human interface: Connecting users to devices with more comfortable and better usability."