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Participants of the German Championship in office chair racing drive on the race track in Bad Koenig-Zell, Germany, 25 April 2009. More than 70 people competed on the 170 metres long race
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Amazon.com : The Original Rollerblade Office Chair Wheels (As Seen On PBS) - Incredibly Smooth & Quiet Rolling Casters - Safe for Hardwood Floors & Carpet - Easy Installation with Universal Fit -
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Wes Bos on X: "three years of roller blade wheel on my office chair. One of the best upgrades I've ever done" / X
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Ergonomic Mesh Office Chair with Roller Blade Wheels, Computer Desk Chair Provides Perfect Lumbar Support, Black : Amazon.co.uk: Home & Kitchen
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