www.chinaphonearena.com

These guys don't waste any time man. Seriously they run around while they do it.

Cloudy day. late afternoon.

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Slight S-curve:
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More S-curve:
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whoa, slow there - this is PG13, no? ;) just kidding...
keep 'em coming (no pun intended...)

Haha

They run and stop in perfect synchronicity. It's really quite cool.

I feel sorry for the one in back (M/F?), it has to run backwards.