The restaurant supply district of Kappabashi is for restauranteurs and chefs, gourmets and anyone who likes to cook to stock their kitchens and restaurants. If something is found in the kitchen, there's likely to be a shop in Kappabashi that specializes in it.
It is famous for its plastic food models as restaurants in Japan display these food models in front of their venue - these are sold in Kappabashi shops, notably at renowned Maizuru where the samples look amazingly real.