By Richard Gibson for the Daily Mail
Published: 22:30 BST, 10 June 2019 | Updated: 22:58 BST, 10 June 2019
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The flashing Zing bails have failed to drop five times during this World Cup.
Batsmen have always been reprieved if the stumps are not properly broken by the impact of the ball, and most club players can provide accounts of being on one end or other of such incidents.
However, we have seen an unusually large number of incidents on the biggest stage of all, and the fear is of a repeat scenario at a crucial moment of a match as big as the semi-final or final.
Jonny Bairstow (right) inspects the stumps after Mohammad Saifuddin survived on Saturday
David Warner became the fifth batsman to benefit from a reprieve against India on Sunday
Is the technology NEW for this event?
No. The manufacturers and the International Cricket Council insist it is exactly the same.
No changes to the weight of the stumps or bails or depth of the grooves, then?
Correct. Everything is the same as in recent World Cups, World Twenty20 tournaments, the Champions Trophy here in 2017, the Indian Premier League, Big Bash and Twenty20 Blast.
So the Zing bails weigh the same as a traditional set of bails then?
Ah. No. The composite plastic ones, which have hidden low-voltage batteries, are slightly heavier but weigh less than the heavy wooden bails umpires use in windy conditions.
How does the Zing technology work?
A microprocessor in the bail sends a signal when both of its spigots have been separated from their grooves, leading to the illumination of the LED lights in the bails and stumps within one-thousandth of a second.
The bails lit up when Quentin de Kock missed a sweep but the bail failed to be dislodged
Chris Gayle was given out caught behind only for the ball to have grazed his off-stump
Dimuth Karunaratne survived despite chopping the ball onto his stumps against New Zealand
