These are UV printed on PETG plastic and slump molded into bowls. PETG is indeed food safe but the bowls can only be lightly cleaned. They are not durable enough for daily kitchen use. They are an art object and not a functional kitchen bowl. Gentle use is recommended. Each bowl is unique because they are hand molded. They are all of the diamond ring image I took during the Great American Eclipse in 2017. The bowl starts out as an 11″ disc that is molded. So the bowls are about 9″ or so in diameter. Since they’re all different when you buy a bowl I’ll email you with pictures of my current inventry and you can pick the one you want..