All of 9 inches in width and 28 inches in height (including the bails) from the ground, the stumps are a fortified possession of the batsman. A batsman is declared bowled when the bowler is able to beat the batsman's defence and proceeds to disturb the batsman's stumps.
The stumps consist of a leg stump, a middle stump an off stump and a pair of bails placed atop of the stumps.
On most occasions the batsmen gets bowled when he is well-and-truly beaten but on certain occasions the batsman deflects the ball on to his stumps off an inner edge. Such instances are referred to as played-on, but they are jotted down in the scorebook as bowled.
On rare occasions the batsman ends up disturbing his stumps in the process of executing a stroke, commonly referred to as hit-wicket. However, this also goes down in the scorebook as bowled.
A batsman, however, cannot be bowled off a no ball.