This set of 8 colors in AIR SERIES line have been specially designed and formulated to paint British planes in WWII. This paint set includes the exact colors the British used to paint their aircrafts and has been formulated in consideration of the Scale Reduction Effect (subtle lighter than actual color), to obtain the correct colors in our kits. All of these colors have been carefully studied by historians and formulated to accurately represent the colors of the RAF. Each box paint set contains references for different models. These acrylic paints can be used with both brush and airbrush. These paints are water soluble which prevents odors and the need for aggressive thinners.