Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not OEM quality

These ink tanks do not mirror the Canon features. The ink tank discharge is oval shaped and will not fit exactly on the round Canon print head connection which could result in leakage. The volume of wicking material feeding the head is also much less than OEM which could result in print loss while waiting for ink flow to catch up to printer speed. This is the second set of non OEM tanks I have tried due to the high cost of Canon replacements.They are not all the same. The first set had black tanks that didn't work at all but color tanks that did work OK but seemed to run out quickly. They were made with the correct volume of wicking and round discharge pads that matched OEM. They were worth it due to the cost savings on the color tanks. I assumed this set would be similar and they were not. I threw the whole set in the trash and ordered some Canon tanks.