Making perfectly shaped onigiri rice balls has never been so easy these two different sized triangular rice ball moulds are fun and simple to use just add rice to the mould press down with the tamper lid then push the flap at the top to take your perfect onigiri out all you need is a sheet of nori and some furikake and you have a fantastic bento lunch snack or afternoon tea treat large mould measures 45cm by 77cm small mould measures 4cm by 66cm made in japan