Prema opisu i ilustraciji (vidi poveznicu, ili se samo sjetimo neke svoje posjete McDonald'su), posredi je upravo umetak kao što mu i ime kaže, a imajući u vidu i:
"The Heated Landing Zone or HLZ is designed to hold assembled sandwiches. By circulating heated air evenly across the open staging area, the Heated Landing Zone keeps sandwiches hot without drying or cooking. The Heated Landing Zone meets all McDonald’s standards for safety, efficiency, food safety, and cleanliness."

Graničnik mi se u ovom slučaju čini donkle boljim rješenjem od štitnika ili branika.