How many punches can you throw in 12 seconds?

Twelve seconds. One punch bag. How many punches can you throw? And what will BBC boxing pundit Steve Bunce think of your efforts?

Here are some of your responses to BBC Sport's 12-second challenge!

Think you've got what it takes, or are even faster than a pro-boxer? Send us your efforts to #bbcboxing.

See how the first group got on here.

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