Picture came thru for me...
4 bowels... viewed from the bottoms
one looks like green marble,
another like granite you see in flooring (mix of black, white spots on grey)
third is black with thin brown streaks - wood like?
last is white... not sure what it is supposed to represent... seems like a faint cloth/linen like weave? (that could be just the picture)
so these are all stainless steel? or are the bowels double walled with the patterns on the outside?
Meddle not in the affairs of dragons for you are crunchy and taste good with ketchup.