bartgThese inks are unlike the regular Sailor Jentle Inks that you can get from other stores. These Inks are all handmade by One man, Osamu Ishimura. These inks are made per bottle not in a big batch that the rest of the Jentle Inks are made. These are special inks that you can only get from one store in japan, which in this case is BungBox.
This drop is a godsend to those who have heard of the ink and have no resources to import the inks from the store or if Vanness pens doesn't have these colors in stock (which it doesn't. Though it does have many other BungBox inks available).