Visually stunning magic.
A card is inserted into a plain frame. The magician then, by magic, removes the centre section of the card! This looks stunning!
It all happens under the watchful eyes of the spectators. No cover is used to perform the trick.
The card is put back together inside the frame, and removed. It is shown around and examined by spectators. There's nothing to find.
The frame does all the sneaky stuff for you. No sleight of hand involved.