The "lock" design isn't sturdy and does not hold stuff like salad and such. If you take a tomato in this the juices will leek The cutlery was so bad I just had to throw it away It is still usable and I'm gonna keep using it. also the strap is very nice and flexible since you can carry one box or both, depending on your needs,
Best bento box. we order 10 of them for our colleagues