I love these little containers and so do the kids.  When I first started shopping for alternatives to plastic for lunch storage I had a hard time finding something that fit a regular sized sandwich. Anyone who uses whole wheat or whole grain bread knows that the slices are pretty big and hearty.  I can fit a regular sized or larger size sandwich in one of these no problem. Once in a while I might have to cut off a corner or two if it’s misshapen bread but mostly, it works great.  My son can open the container himself and it comes back from school empty. I also love these for carrying snacks and the LunchBots Duo is perfect for sending in fruit or dry snacks.  I am a fan of their Rounds containers too.  A little birdie told me they are coming out with an insulated round soon.