If you stuff rice and close the lid, you can make "triples" of rice balls ♪ I found a bento goods called "Papa and Onigiri 3 at a time".
A rice ball case that folds into a triangular prism shape. After filling the rice and ingredients and closing the pattern and lid, the partition inside makes it possible to make three rice balls.
The resulting rice balls are small in size, about 60-80g (2.82oz) each. It seems to have a softer and gentler texture than the one held by hand. The point that you can carry it as it is once you make it is also ◎. It seems good to use two of the three for lunch and the other for an evening snack.
"Papat and rice balls 3 at a time" are sold at various mail-order sites. I bought it for 809 yen using Amazon.co.jp. In addition to the "green" color introduced this time, there is also a "pink" color model.