that's slightly disturbing... can you imagine the arthritis those girls must have had by middle-age? that can't be good for their joints!
Holy Cow! That makes every muscle in my body hurt just to watch them!
wow! i can't believe how much muscle control they have, it's amazing!! think how long it must've taken them to be able to do those things without falling!
This is incredible. I have never seen anything like this. What are they made of? India Rubber?
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