A movie that can open a key of a car with a tennis ball

It is an amazing movie that can open the key of a car just by using one tennis ball without using the key, wire and picking tool.

How can a woman with such a smiling face open its car key.

The playback of the movie is from the following.
Apparently, it cuts a part of the tennis ball, applies the cut to the keyhole, pushes the ball tightly, it seems that the air is pushed into the keyhole and the key opens. Do not misuse it.
Blondie Unlocks Car Video


It is convenient when you lose the key, but it is really scary when it is misused.