WC1221 Raw Umber Earth Colours™ Liquid Pigment 4 fl. oz. is a N/HO/00/O Gauge model produced by Bachmann in their Woodland Scenics Accessories range. It has been specially formulated for adding color to Plaster Cloth, Flex Paste, foam, wood, plaster and papier mache terrain models. The product is non-toxic, water-soluble, removable and you can create your own custom colors by mixing the range together to get the perfect finish.