Discover the Kitchen Molds collection at Globalkitchen Japan. Kitchen molds are versatile tools used for shaping and forming various foods into specific shapes, sizes, or designs. A rice ball mold, often referred to as an onigiri mold, is a simple yet efficient tool designed to shape cooked rice into triangular or cylindrical rice balls, known as onigiri. A sushi roll mold, also known as a sushi mold or sushi maker, is a tool used to shape and form sushi rice and fillings into uniform rolls, often used to make maki sushi.