Two cylindrical bits of lumber set across the top of the three stumps at each and every end associated with the wicket. Grooves tend to be set into the the top of stumps to prevent the bails rolling off or being blown down because of the wind. For a batsman becoming provided when you are bowled, one or both bails must fall-off the stumps. In the event that baseball strikes the stumps in addition to bails stick to, then the batsman can't be out. The exact same applies to a run away. (sport: Cricket)
If he bails out maybe Betsy will lend me you for a fill-in.