This set of 8 colors in AK Interactive's new product line AIR SERIES have been specially designed and formulated to paint early WWII German aircraft. This paint set includes the exact colors the Germans used to paint their aircraft. All of these colors have been carefully studied by historians and formulated to accurately represent the colors of the Luftwaffe. Each box paint set contains references for different models. These acrylic paints can be used with both brush and airbrush,k and are supplied in 17ml dropper bottles. They are water soluble which prevents odors and the need for aggressive thinners.