Meet the XLFLEX by Visual Gains: a smart wearable device that can be used to track your arm size while you lift. It connects to your smartphone to provide you with measurements live. You can also use it for other parts of your body.
More gadgets like this ➡️ : here
The XLFLEX can handle body parts up to 25″ in circumference. It has a screen you can flip to easily view your data.
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