Don't ever buy ink cartridges from ebay as they only have a 30 day return policy, after that your on your own.. Most ink companies have at least a year to return them if they are defective or not compatible... You would not know until you run out of ink and replace it with the purchase you made. Maybe you bought a spare... I bought a ink cartridge 2 1/2 months ago and now I installed it.. Defective, does not work on my Canon as a compatible cartridge, shuts down the printer with a B204 (error cartridge code) cannot use any buttons on the printer.. Ebay said they only guarantee 30 days from purchase.. So what's the point of buying ink from ebay.. They would not even provide me the phone # of that vendor.. Looks like the vendor is from Hong Kong, which was misleading during my purchase... I have contacted the vendor through ebay website and well see what happens.. Never again will I buy ink from ebay.. Buyer beware !!!