The process of making table tennis balls includes lots of measuring and at least one trade secret. Competition-ready balls also go through a series of quality checks by hand—testing the balls’ surface, veer, hardness, weight, and roundness. Go behind-the-scenes at Double Happiness (DHS), the Shanghai, China-based ball production company profiled in this Pingsider episode from The International Table Tennis Federation.

Next: Liquid Nitrogen and 1500 Ping Pong Balls, 2,000 ping pong balls and 30 middle-school teachers in Zero G, and Ralliers: Table tennis in London’s public spaces.

via The Awesomer.

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