Der genaueste Handkraftmesser der Welt

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World‘s Most Accurate Grip Strength Tester #shorts

Download our app and start your own 90-Day Challenge 🔥💪
Appstore: https://apps.apple.com/us/app/90-day-challenge/id6446773000
Playstore: https://play.google.com/store/apps/details?id=nl.browney.nintydayschallenge

This device can actually test your grip strength!
By squeezing it as hard as you can,
it shows you exactly how much weight you just gripped!
So I wanted to test this out on the strongest people I know.
First one to test is Malin!

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