Welcome to Cosmo Goods. See what's new

Our newest release is deserving of fascination

  • Maximum weight

    Boasts an impressive maximum grip strength of 90kg (198lbs). Elevate your grip game with this powerful device, designed for peak performance.

  • Repetition Mode

    Its unique Repetition Mode, perfect for building strength through targeted repetitions. What sets it apart? You decide the resistance and difficulty.

    Note : A repetition counts when the user applies the necessary force required.

  • Battery


    The battery last for several weeks and is rechargeable.

    Package comes with a USB-C cable.

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Frequently asked


Where do we ship from?

Primarily we ship out from fulfillment centers in the United States, Eastern Asia and Western Europe. If your item is out of stock in your nearest location, we'll send it directly from our production line with the same delivery times as indicated in our checkout page

What is considered strong when using DynaGrip Tracker as a male?

For Minors (10-17 years old)

  • Weak : <23.25kg
  • Average : 23.25-37.5kg
  • Strong : >37.5kg

For Adults (+18 years old)

  • Weak : <33,25kg
  • Average : 33.25-56kg
  • Strong : >56kg

Is there a free shipping option?

Yes. Free shipping option is available worldwide.

Is it suitable for all hand sizes?

Yes, you can make it fit for every hand sizes, by rotating the roller in the middle.

Is it hard to get a score of 100 kg?

Yes, it is very hard. Getting a score of 75 kg is already something that most gym members struggle with.

Is it rechargeable?

Yes, the package comes with a charger cable. The battery lasts for days.

Is it heavy?

No, it is light as it weights around 0.27kg or 0.6lbs

Does it build the forearms?

Yes, using its rep mode allows you to perform sets of high repetitions to achieve your desired score and increase muscle mass