This package contains three refill bottles of various inks. Included is one bottle of Memento-- a water-based fade-resistant dye ink, StazOn-- a fast-drying solvent ink designed especially for use on non-porous surfaces, and VersaMark-- a watermark stamp ink that creates translucent images. The Momento is Tuxedo Black and the StazOn is Jet Black. Each has 0.5 fl.oz. and all are acid free.