These are watersoluble pigment blocks made by Viarco, the pencil company from Portugal. They are great for tonal studies!

Amazon affiliate links:
US: https://amzn.to/2WInOtz
CA: https://amzn.to/2FeX9yS
UK: https://amzn.to/2InGxa6
DE: https://amzn.to/2XRVXsf
FR: https://amzn.to/2XlDabR
ES: https://amzn.to/2RjsDbP
IT: https://amzn.to/2XTGGHk
Jackson's Art: http://bit.ly/artgraf-monochromatic

Primary colour set (review):
   • Artgraf Color Set - Watersoluble Grap...  

Earth tone set (review):
   • ArtGraf Earth Colours Set (review)  

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