LACHIEVA Black International Standard-Short Fountain Pen Ink Cartridges - 32 Packs Black

LACHIEVA Black International Standard-Short Fountain Pen Ink Cartridges is a pack of 32 black ink cartridges that are designed to fit a variety of fountain pens. They are Considered "International standard short ink cartridges" with dimensions of 3.8cm (length) x 0.23cm (suction). The ink is not waterproof, which should be noted for those who intend to use it for documents that require water-resistant ink. According to customer feedback, the cartridges fit pens such as Levenger, Kaweco Sport, and Muji Aluminum Fountain Pen. However, they are not compatible with Luxun handcrafted refillable rosewood pen set. One customer noted that the ink is more of a "warm" black than a deep black, and lighter than they would prefer. Nevertheless, the price is reasonable, and they are still on the first cartridge, so the color may become darker with more use. Customers appreciate the product description that ensures they are the correct size and the decent value of the cartridges despite the simple packaging.