JIN BD Wrist Trainer Ball Auto-Start Wrist Strengthener Gyroscopic Forearm Exerciser Gyro Ball for Strengthen Arms

Fingers, Wrist Bones and Muscles

Color BLUE
Material Silicone, Polycarbonate
Brand JIN BD
Style Wrist Ball
Item Dimensions LxWxH 3.15 x 3.15 x 2.36 inches
  • Automatic start design, need to push the core in the direction of the arrow, start by the internal spring, very easy and convenient.
  • When it rotates, the cool colored lights inside will light up. It can kill time and add fun while restoring muscle soreness.
  • Without any strange vibrations, it can rotate for a long time without worrying about it stopping when moving.
  • The convenient design can be carried anywhere, whether in the office, gym or at home, it can be used as a toy to decompress at any time, and it can also exercise arm muscles.
  • Wrist ball can promote blood circulation and increase the strength of fingers, wrists, hands, forearms, biceps, triceps and ligaments and shoulders, and restore muscle strength.
Product introduction
Comment And Reviews
The string that attaches to the ball that goes around your wrist is missing.
I’ve had a few NSD Powerballs over the years - I think they were the original makers of this type of gyroscopes. I’d always been pleased with their quality, so I was skeptical that this one would be as good, given that it’s so much cheaper.

I actually think I like this one better.

The build quality feels on par to the NSD products, the LEDs are fun, and the auto-start is handy.

They’re basically the same size, but the Jinbo one might be 2-3mm smaller all around, and you don’t get the digital counter that you get on some Powerballs, but I don’t care about that and I appreciate not having the bulk of the counter on the top side of the ball.

This one does seem to have a tiny bit more vibration, but not so much that it bothers me.

The addition of the spring adds a bit of a rattle, but it’s barely noticeable.

For people saying their spring doesn’t catch for the auto-start, you have to be holding the ball level, with the open part facing up. If it’s not level, the spring won’t catch.

The wrist strap is a nice addition. I’m always afraid these things are going to go flying out of my hand, because some days I have the grip strength of a small field mouse (which is part of why I bought this in the first place).
Great exactly what I wanted minus the fact the spring broke day 1.
Not the best but still very nice, comes with a handy carrying case great buy for the price.
Wanted something simple compact and not as boring as bands to rehab my shoulder post surgery for rotator cuff, bicep tendon moved etc etc etc. Had the other shoulder done 2 years ago so I knew I wanted something a little different (aka not boring) this time, for the non-dominant arm. Found it! Coordination wise dominant WAY easier but IMOT it’s a post surgery complication which will improve quickly using this product. Oh felt the burn not even a minute in!
Not quite sure what I was expecting when I order this but ended up not being very happy with the product I received. It’s seem well made, comes with a wrist strap and a nice case. Not hard to use, just wind it up and let it go. I found the gyroscopic resistance/force to be extremely minimal and believe that simple wrist exercises work just as well. Maybe some of the higher end ones work better but for my purposes this one it’s and interest toy for children. Thanks to Amazon for their outstanding CS and return policies:)
It took a bit of how to get the gryo spinning...but this is fantastic for my broken wrist as now after two months of using this gyro ball my wrist is back to full movement plus my grip Strength has improved 50 percent. Would definitely recommend this item as it assist in rehabilitation from a broken wrist.
I thought I remembered how to use this from having one many years ago, but I had to double check the instructions. They are perfectly clear now. Using your thumbs rotate the internal ball in the directions of the arrows until you feel the spring catch. You will feel it as the ball becomes harder to spin. Load up the spring until it feels like it can’t go any further. Holding the internal ball, place device in the palm of your hand the let go. Rotate your hand at the wrist and you can feel the resistance from the spinning ball. It takes a little practice, but keep at it. After about a minute I can feel the burn in my forearms. There are a lot a videos out there if you need more help. Good value for the price of this.