I know this is going to seem trivial and a silly ask, but I'm going to ask anyway. I am putting together a mentalism show and I am hoping that someone who is already performing this, could link me to some envelopes that work great for this. I could just pick any...I know there are tons of them out there. But, I would like to feel confident that at least one person is already using the ones I buy and are happy with them for the routine.

Https://www.amazon.com/Xxcxpark-Envelope......8-2&th=1