This not a good deal on ink...The Bungu Box inks are made by Sailor...Bungu Box dramatically raised their ink prices a year or so ago, and Sailor has recently raised their prices....there are equally as good inks available at much better value than Sailor or BunguBox.
Waterman, 3Oysters, Taccia, Noodler's, Lamy, Rohrer and Klinger, Akkerman, Diamine, to name a few.