After struggling one night to get chains on his tyres on a snowy mountain, Czech businessman Petr Gross decided he needed to come up with something that did the job better.
![](https://praguemonitor.com/wp-content/uploads/2023/11/f-meyqwiaai6ru-3-300x300.jpg)
After struggling one night to get chains on his tyres on a snowy mountain, Czech businessman Petr Gross decided he needed to come up with something that did the job better.
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