These are beautiful pots and unique. I work with the only factory in Spain that offers hand painted black clay pots. To hand paint a pot, it needs to be kilmed dried at a ceramic level heat. The consistency is very similar to a terrecotta pot, but only black, which makes the painting pop. Most black clay products on the market are offered without any painting, or with heavy glazes and kilmed at temperatures that make them similar to cement. We are starting to produce regular shaped pots, in addition to the sets of pots, and several US companies have expressed interest in the pots. We hope that by the end of this year, our black clay pots are being offered in the US.