Cobra oil colour in Perylene Green Black 721 is a transparent colour with excellent lightfastness (+++). Cobra is a water-mixable oil paint that offers the same fantastic results as traditional oil paints, without having to use harmful solvents. Cobra is an artists' quality oil paint with an exceptionally high degree of pigmentation. · Can be mixed and cleaned with water · Created with only the very best pigments and oils · Ground multiple times on a triple roller mill during the production process to create an artists’ quality fineness · Available in 70 transparent, semi-transparent, semi-opaque and opaque colours with the highest degree of lightfastness (+++) · Includes 32 mono-pigmented colours, including ten colours based on highly exclusive pigments, such as cadmiums, cobalt and chromium oxides · Cobra can be used in conjunction with traditional oils and when mixed at a ratio of Cobra 4:1, the mixture will retain its ability to be thinned and cleaned with water · Made in the Netherlands