Brand new, unused item! Of course, within the expiration date. Set Contents: KAK-BK KAK-C KAK-M KAK-Y KAK-LC KAK-LM Compatible Models: EP-717A EP-817A Reliable 1-year domestic warranty (dealer warranty): The dealer will provide a warranty for one year from the date of purchase. After the product is delivered (product damage during delivery / ink leakage / recognition failure / printer malfunction, etc.), the warranty will cover the ink cost as the upper limit, and a refund will be processed through Amazon. *Please note that incorrect purchases are not covered by the warranty, and refunds/exchanges are not possible, so please check the compatible model number before purchasing. The print finish will vary depending on the paper, so we recommend reconfiguring before use. Although these are compatible products that can be used with genuine products, compatible products cannot be manufactured in the same shape as genuine products due to intellectual property rights. Please understand that these are compatible products before purchasing. *The package, label, and shape may be changed depending on the product's procurement time, but there is no difference in the quality of the product, so please rest assured.