Norimaki is a type of sushi roll in which vinegared rice and fillings are rolled inside a sheet of nori (dried seaweed), then sliced into bite-sized pieces. Standard norimaki has the nori on the outside and rice inside; the reverse, with rice on the outside wrapping the nori and fillings, is called uramaki (as in the California roll), while a hand-rolled cone shape is called temaki. Common fillings include raw or cooked seafood, egg, and vegetables such as cucumber and avocado. The style became widespread in Japan during the Edo period (1603-1868), once nori sheets were being produced commercially, and is now a fixture of sushi menus worldwide.