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I'm disappointed there are no images or video of the speed bags in the story linked below. But it sounds like an idea Adidas should try here in the USA. Haha, Alan would suddenly increase his use of the bus and subway !!! 
"In addition to the punchbags a public spinning machine and speed bag for daytime use have been placed at five bus stations in Pudong."
Adidas Punchbags Relieve Stress Of Chinese Subway Commuters
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"In addition to the punchbags a public spinning machine and speed bag for daytime use have been placed at five bus stations in Pudong."
Adidas Punchbags Relieve Stress Of Chinese Subway Commuters
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