FW Artists' Ink is an acrylic-based, pigmented, water-resistant ink in a range of 38 colors, all of which have either a three-star or four-star rating for permanence. FW Artists Inks work well with dip pens, technical pens and brushes. - Daler-Rowney FW Acrylic Water-Resistant Artists Ink - 1 oz, Shimmer Colors, Set of 6 with Empty Markerfw Acrylic Water-resistant Artists Ink, SHIMMERING 6CT SET - This set contains six 1 oz (30 ml) bottles of ink and one empty FW Marker with a round size 1-2mm tip. The colors include Black India, Shimmering Gold, Shimmering Blue, Shimmering Green, Shimmering Red, and Silver Imit.