This highly fluid acrylic ink has very low sedimentation, can be thinned with water or mediums, and dries waterproof. Use it with airbrushes, technical pens, fountain pens, brushes, or by pouring or applying with the included dropper. Can be used with Amsterdam Acrylic paints and markers. 30 ml jar - Amsterdam Acrylic Ink - Basic, Set of 6Amsterdam Acrylic Ink, BASIC 6 SET 30ML - This set includes one each of Titanium White, Primary Yellow, Primary Magenta, Primary Cyan, Yellow Ochre, and Oxide Black. 30 ml each.