Each kit comes with 90ml of ink in three 30ml containers. The color kit has one bottle each of cyan, magenta, and yellow, while the black kit has three bottles of black ink. The kit also has a fourth, 30ml bottle of printhead cleaner, handy for removing dried ink residue from cartridges that have been unused or left empty for long periods of time.

As with all DIY refill kits, some cartridge surgery is involved. I attached the syringe, needle, and hand spike, inserted the needle in the black cartridge's fill hole, and began injecting ink.

I'm impatient, though. The ink wasn't flowing fast enough for my tastes, so I pressed harder on the injector. Big mistake! The ink shot out the back of the syringe, blasting the walls--and me. Luckily, I was wearing glasses at the time.

After cleaning up the mess, I (slowly) filled the black and color cartridges. G&G's instruction sheet didn't say how much ink to add to my HP 60 tanks, so I made an educated guess based on my previous refill experiences: 4ml to 5ml of black ink, and 1ml each of the color inks.