WC1215 Earth Colours Kit is a N/HO/00/O Gauge model supplied by Bachmann in their Woodland Scenics Accessories range. This is an amazingly simple system for coloring terrain and plaster castings such as rocks, retaining walls, culverts and tunnel portals. It has been specifically formulated for colouring Flex PasteÂ™, Plaster Cloth, Lightweight HydrocalÂ®*, plaster, foam, wood and papier mache terrain models. It is water-soluable making cleaning brushes etc. very easy. There are eight individual bottles in the kit, each one is 1 oz. (29.5 mL). *HydrocalÂ® is a U.S. Gypsum registered trademark.