Kuretake Gansai Tambi Watercolour Sets 12 setKuretake Gansai Tambi Watercolors are handcrafted, professional quality Japanese watercolours with a highly blendable, creamy smooth consistency. The colours are rich and intense, and exhibit greater opacity than European or American watercolours in traditional Japanese style. Light fast water based pigment paint that can range from transparent to opaque depending on the amount of water added for dilution. Non toxic.