Didn't come with any instructions but was packaged well and simply by looking closely at my before-and-after situation to try to match what I had, I was able to pop the old cartridge out of the adapter, pop the new one in, pop off the guard, and slide the adapter cartridge into the printer fairly easily. Worked nicely on the first use without the need to clean/recalibrate. Didn't come with any recycling bag/instructions for the old cartridge, either, but it was compatible with my printer just like the box said and that made quick work of everything. Glad it went well.