For me it looks really cool, I have a feeling that it would help. But maybe it's only my amateur opinion? What do you guys think? I'm really tempted to buy this. It has different spring forces in lbs, the cheapest one is £50 and it goes up to £130. I am attaching images in here. Please let me know what you think of it or maybe someone had this device?
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2.jpg rsz_13.jpg
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2.jpg rsz_13.jpg
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