I made this onigiri maker / press because I wanted a more rounded corners, and for the ball to have finished shape directly out of the mold. Consists of two parts that slot one into the other, creating a cavity that can perfectly shape a ready to serve onigiri! I suggest using cling film as a barier between the mold and the rice for easier extraction of finished onigiri and easier cleaning. I add some rice to the bottom mold over the cling film, spread it a bit on the sides, and then add filling. Top it off with some more rice, cover with the cling film and press in with the top half of the mold. After pressing the ball should easily come out with the plastic film. Just unwrap the film and reuse it.