The phrase "Box, box" means one thing in Formula One: a pit stop. It is one of the most important strategic moments of a Grand Prix and can have a big impact on race outcomes. Modern F1 pit stops have become ridiculously fast. Many happen in 2.5 seconds or less.
During that time a car needs to hit its marks, be raised up on the jacks, four wheelnuts removed and placed back on, four tyres swapped for fresh ones, the car dropped back to the floor and drivers pulling away from the box.
It's a whirlwind of loud noises, fast actions, and split-second decisions. All to get your car back on track in the fastest time possible and execute the Team's strategy.