With the stacking frame for your thermobox, you can use two different heights as needed. For bigger loads, simply put on the stacking frame and for smaller loads, leave it off. This allows you to vary flexibly by an additional 18 cm in height. Why that’s especially practical? A thermobox should always be packed full. This avoids unnecessary empty space in the thermobox, the temperature keeps longer and you save space in your car or storage room.