b.box Lunch TubDesigned to fit perfectly in the sandwich compartment of your b. box lunchbox, or use on its own. The lunch tub is leak proof when used with cold foods ideal for salads or leftovers, and is also suitable for wet foods like gravies or sauces. When its time to eat, the flexible silicone corner tab lets small hands easily grip to remove from the lunchbox and open the lid independently.