It's the closest replacement to the discontinued Spotone retouching dye. Not an exact replacement but there is nothing else out there. They are available in warm, neutral and cold (for black and white) plus the watercolor dyes for RA4 (color) darkroom printing.
The complete edition gives you a great selection to start out your journey with peerless watercolors. The versatility is amazing. You can even tint black and white photos!
... for all watercolour artists on the go or while travelling -- especially urban sketchers.