It is referred to as a bamboo sushi mat. They are typically wrapped in plastic for sanitary reasons. They help the sushi chef form a nice round roll for the presentation, but they can use it to make different shapes such as tear drops.
You can buy them online at: http://www.homesushibar.com/kitchen-knives-tools/sushi-tools/
To use a sushi mat to make sushi rolls, place a sheet of nori seaweed on the mat, add a layer of sushi rice, then add your desired fillings. Roll the mat tightly to shape the sushi, then slice into pieces.
Tatami mat
Tatami.
No, Sushi is Japanese. However, Korea has a similar dish called Kimbap.
A Japanese sleeping mat is called a futon. A futon sits upon a woven mat called a tatami. These types of beds have been used for thousands of years of Japanese history.
It is called sushi.
Yes it does. That is why it is called Japanese food. Some Japanese foods are in common with Chinese food too.
Rice with rice vinegar and sugar, and seaweed (called nori in Japanese) are the two staples of sushi. Common sushi fillings are vegetables and fish.
Japanese straw mats are called 畳 (tatami) in Japanese. The pronunciation is somewhat like "tah-tah-me".
Yes. Sushi is Japanese.
Some of the Japanese foods are called: sushi nabemono nimono
You can buy one at sushinow.com