Interchange: the designated area of the ground where players wait to be allowed onto the field after another player has left, i.e. one player is interchanged for another.
This option is for those who wish to “interchange” any of the set donation levels to whatever best works for them. If you prefer not to receive any boomerangs for your donation and just simply want to contribute, this option is for you. At checkout, you will be able to enter your desired donation amount.