Green Toner Supply&trade; Compatible Ink Cartridge Replacement for Canon CLI-251XL High Yield (Magenta, 2-Pack) Green Toner Supply offers LIFETIME WARRANTY against manufacture defects Green Toner Supply offers 2 Years Money Back Guarantee on Manufacture Defects These replacement cartridges were professionally manufactured in an ISO 9002 factory Green Toner Supply Compatible Ink Cartridge Replacement for Canon CLI-251XL works with the following machines: PIXMA MG5420, PIXMA MG5450, PIXMA MG6320, PIXMA MG6350, PIXMA MX722, PIXMA MX922, PIXMA iP7220, PIXMA iP7250 Green Toner Supply cartridges were professionally manufactured in an ISO 9002 factory