When your campaign includes the Corsicana expandable lunch box, your message is always "consuming!" Microwave safe and BPA free, this 3-piece, collapsible lunch container features 4 compartments, 4-sided sealing clamps and a microwave air release. Just lift the silicone vent hole when microwaving. The top tray has 3 compartments with the middle one for silverware. Below it is a large compartment that's collapsible when empty or for storing. Order yours today!