Features: Produced by carbon zero technology; no clogging, smooth printing; Due to the variety of printer models, if you are not sure about the ink cartridge model or toner cartridge model corresponding to your printer, please contact us, and then arrange the seller to deliver the goods after confirming the applicable ink cartridge model; After long-distance transportation, due to bumps on the road or artificial throwing, it may cause bubbles in the ink cartridge cavity; if you find this situation, do not worry, you just need to stand for a period of time, and then install it on the machine, you can print; High ink capacity, chip count capacity; If the printer is not used for a long time, the ink in the print head will dry up and block the print head. If the dry blockage is not serious, you can use the cleaning function to flush the print head. If it is serious, the print head may be scrapped. Specifications: Material:ABS Length:Approx.8.8cm/3.46in Model:PGI450 PGI450 CLI451 Color: Black1, Cyan, Magenta, Yellow,Black2,Gray; Applicable Brand Models: for PIXMA MG5440/MG5540/MG5640/MG6340/MG6440/MG6640/MG7140/MG7540/Ip7240/MX924/IX6540/IX6840/IP8740 Volume: Black :25ML, Cyan, Magenta, Yellow,Gray, Black2 :15ML Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 6x Ink Cartridges