I don't understand. It says in the instructions to sterilize by placing it neatly in the box and the two feet in the EVA foams. Which foams and what box besides the narrow rectangular box that was inside?

I initially saw it at my dentist's office (the large one, to be precise).
I bought it at a much higher price.
It is the most reputable company in the field.
At the current price, it's a steal from a homeless refugee who hasn't eaten in a week. And you snatch the sandwich from their mouth.
I have bought one for each member of my family and we use it daily.
Perhaps it's not unrelated that neither my wife nor I have gotten sick.
Of course, we are careful and take all necessary precautions.
But for mobile phones, keys, and food items, it's the quick solution.
Its biggest advantage? It fits everywhere.