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| Brand name | Yuerco |
| Material | Abs & tpr |
| High-concerned chemical | None |
| Origin | Mainland china |
| Application | Arm |
| Model number | Out180 |
| Standard voltage | None |
| Item type | Massage & relaxation |
| Size | Multi size sml |
| Choice | Yes |
| Strength training areas | Fingers, wrists, hands, forearms, biceps, triceps, ligaments, shoulders |
| Design feature | Led light for fun and recovery |
| Power source | Rotating wrist (no battery required) |
| Benefits | Increases strength, recovers sore muscles, kills time |
| Color | Not specified in description |
Based on available product review data for this item.
This thing was a hit. They really liked it uses it a lot.
it worked for only three or four uses. poor quality!
Took me a couple of minutes to figure out the "self starting" aspect, but it's a fun little gadget otherwise. Not sure how useful it is from an exercise perspective, but it's an interesting toy.
Excellent device works well recommended. Fast shipping well packed thank you
arrived in 14 days, everything as in the photo, I recommend the seller
Very practical product that helps a lot with wrist and arm strength! Very nice and the light helps you know if you are spinning at the right speed! Fast delivery and well packaged!
Fast delivery (1 week). I've been using it for 5 minutes and i can already tell you that it's an amazing tool, my wrists are already tired xd It's hard to understand how to "turn it on" at first, but once you get how to do it, the next times are extremely easy. Instructions are not very clear, so this might help: 1. Think of it as a "friction toy car". 2. Use both thumbs to push the wheel in the direction of the arrows a few times, this means, push -> hold -> push -> hold. 3. Once you feel enough force built up against your thumbs (trust me, you'll feel it, this thing is strong), you let go. 4. Start "rotating" your wrist or doing circles with your hand while holding the ball. 5. Use the wrist strap to prevent injury, it really builds up centrifugal force. .
I really like it.
The powerball works as described and lights are a cool way to know what intensity you are working out.
The material is of quality, it looks good but for now I don't know how it functions. I hope to control it and it will be useful for making a doll.
Thank you very much for the quick refund. Your customer service is very good! I am still searching the internet for a better video that shows how to start the gyro ball spinning. I can get it started but cannot speed it up with my wrist movements. I will keep working with the ball and ask for help at a local exercise equipment store in san francisco california.
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