Skilled craftsmen hand apply a food safe enamel on the gold metal surface, giving it the fragile and delicate beauty of porcelain but it will never break.Each of our creations is designed in our San Francisco studio. Master craftsmen using centuries old technique of sand casting create the original mould and skilled artisans hand create every piece, with pride, in our family owned factory. Details Small:Size: 1.5" H; 6" DiaFinish: OysterMedium:Size: 2.75" H; 9" DiaFinish: OysterLarge:Size: 3.25" H; 12" DiaFinish: Oyster Extra Large:Size: 4" H; 17.5" DiaFinish: Oyster Material : Aluminum, Enamel Use and Care Given its handmade and hand-finished nature, variations in the piece are to be expected and celebrated. No two pieces are exactly alike. Food Safe Hand wash with mild soap, water, and towel dry. Do not use abrasives or chemicals to clean as the metal may scratch and discolor. Not dishwasher safe