Art Clay 650 - that means silver in 999 fine silver quality!
ArtClay Silver 650 is the best ArtClay of all times, softer and easier to mold, longer workable, dry better carving and filing, yet this product series has the advantages of low firing temperature (from 650°C) and low shrinkage (only 8-9 % of the mass)..
The packaging changed from blue to silver, otherwise nothing was changed.
You will receive only new, silver packages and not blue older ones from early 2016!