... excellent brightness, fineness, smoothness, good transparence, and waterproof, while preserved easily and never crack. The original color will never be ... colors can be mixed and bound together easily , the oil paint can not be cracked even after a long time , ... 6colors , 21ml6colors ,50ml, 60ml, 100ml ,170ml, 1200ml ,3500ml bright and non-toxic oil color set ,fastcolour oil color,artists oil colors ...