Bag

Bag — Team Rocket's gadgets.

The Beginning
Team Rocket used it in operation to steal Pikachu from AJ's Gym. They got into AJ's Gym, hiding in the big ball, stole Sandshrew with rubber gloves thinking it's Pikachu, put it into the bag and escaped, throwing the ball away. After the long way they stopped and started to cuss about who should carry the bag when Sandshrew escaped the bag to the AJ's Gym using Dig, accidently taking Meowth with it.