The red line will help you to know which side you are using

The jaw-dropping moment arrives when the card in the left-hand reveals "LEFT

all this between the flames

But there's even more:

There is literally no reset of any kind and it is perpetually ready to go

Infinity Box (blau) Lennart The red line will helpSix precisely nested boxes, stacked like Russian dolls. One fits inside the other, each layer holding a surprise. Let the audience shuffle the deck thoroughly mixing cards face up and face down as they wish. All you have to do is open the boxes, one by one. On the back of each box, a clear prediction is printed, accurately describing the state of the shuffled deck at that moment: "X cards are face up" "X of them are red" As you open each box, every