With one finger, magician makes the key teeth move from one side to the other. Then he makes the teeth eerily turn…it seems like the key teeth are alive! When they all think it's a magnetic principle being utilized, the magician opens a bottle with the teeth of the key and places it directly into the spectator's hands. This is a useful magic gimmick, with 3 functions in one key. You spectators will be shocked when you open up a bottle cap. It could be a show time when you offer the drink to the visitors. "Brand Prediction" is a very amazing and effective card trick. You can keep it on your key ring so you're always ready to prepare it secretly for your card routines.