WTC Final will be played with Duke ball, what is the specialty? Know how different are SG and Kookaburra balls?

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The World Test Championship final is going to start from June 7. Both the teams have reached England. The team of Australia and India will be face to face in the final. A big news is coming regarding the final match. Actually, it is being told that both the teams will play the final match with Duke Ball. While SG ball is used in IPL. So what is the difference between these two balls? Let’s understand.(Indiancricketteam/instagram)