These inks are fantastic. I never used anything except Ink Jungle (Office Beaver) inks because I was afraid to use compatibles as I had had a bad experience before with compatibles elsewhere. Ink Jungle convinced me and I've been using them ever since. When I ran out and Ink Jungle did not have them I found these on Ebay and decided to try them out. They are perfect! They work wonderfully, last great, no problems, no blocked printer heads. Very pleased, would highly recommend. Also great value and speedy delivery. Thanks.