This round Japanese nigiri sushi rice mold is approximately 6.25" x 2"w x 1.5"h. The round Japanese nigiri sushi rice mold is made of plastic and is very easy to use. 3 pieces total. Just scope rice into the center of the nigiri sushi mold, close the nigiri sushi mold together, and press down. That's it! You can make 5 nigiri sushi rolls at the same time. Made in Japan.