SkaterJapanese Traditional Rabbit Blossom Bento Box Set - Square 2 Tier Bento Box, Rice Ball Press, Bento Bag (Blue)

Are all the dividers removable or permanent?

does it come with chopsticks?

Is it leak proof? I am aware that liquids wouldn't be the best choise, but I am wondering if the lid will prevent oil spills outside the bento box?

What do you use the rice ball press for? Can you actually make rice balls with it? Or is it just meant to hold the riceballs?