This is your "bucket", it holds your "Token Bytes Available". One in the same, just another word for it. We've mentioned "Token Bytes Available" numerous times. Just look at your meter, the Token Bytes Available is your bucket, it holds your bytes, it's a bucket. Sorry if it confused you. Token Bytes have nothing to do with Bonus Bytes, they are separate bytes. Token Bytes will be used during the Anytime period if out of Anytime data. Token bytes will be used during the Bonus time if out of both Anytime and Bonus bites.