Largest K'NEX ball contraption

According to Official Guinness Records,

The largest K'NEX ball contraption has 126,285 pieces and was built by Austin Granger (USA), as demonstrated at The Works Museum in Bloomington, Minnesota, USA, on 13 March 2016. The track has a total length of 278 m (918 ft). Read more: Watch mesmerising footage of the world's largest K’NEX ball contraption

For a complete list of 2016 records, please visit 2016 Guinness Records in United States.

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