These are pre-thinned acrylic airbrush colours from Acrylicos Vallejo They are waterbased paints which are non-toxic and non-flammable and come in a 17ml eyedropper bottle which prevents spills. Game Air is designed for use by wargamers and is suitable for airbrushing figures from every genre of wargaming.Game Air can be diluted with water, and all colours can be mixed with one another. The products does not contain solvents and is not imflamable. Colours do not contain lead pigments, nor ingredients harmful to health. Error can be corrected inmediately with water, or with a small amount of alcohol. Once paint has dried, it is waterproof and permanent.