💥 Elevate your grip game—train like a pro!
The Wrist Trainer Ball by JIN BD is a cutting-edge gyroscopic forearm exerciser designed to enhance strength and flexibility in your arms, fingers, and wrists. With an eco-friendly, auto-start mechanism and built-in LED lights for added fun, this portable device is perfect for workouts at home, the gym, or even the office. Weighing just 331 grams and measuring 3.14 inches in diameter, it’s the ideal companion for anyone looking to boost their fitness routine.
Brand | JIN BD |
Material | Silicone,Polycarbonate,Plastic |
Color | Blue with LED light |
Age Range (Description) | Adult |
Item Weight | 331 Grams |
Sport | Exercise & Fitness |
Item Diameter | 3.14 Inches |
Number of Items | 1 |
Construction Type | Plastic, Silicone |
Item Package Dimensions L x W x H | 3.78 x 3.74 x 3.07 inches |
Package Weight | 0.33 Kilograms |
Item Dimensions LxWxH | 3.15 x 3.15 x 2.36 inches |
Brand Name | JIN BD |
Country of Origin | China |
Manufacturer | JIN BD |
Part Number | 10000 |
Style | Strength training ball |
Outer Material | plastic |
K**G
Great exerciser for your hands and forearms!
Just got this today, spent fifteen rather frustrating minutes trying to get it to work, came back to see what reviewers said—kudos to user JD Ruthless who went over the motion needed. (Read on for my version of the directions.) I have injury-related arthritis in my right wrist, and as a musician it’s been giving me trouble as I get older. Don’t know about long term, but, just from this afternoon’s first try, I have a pleasant ache of exercise and I think it will be useful for the atrophy of muscle strength due to the arthritis disuse.Directions:If you too have problems getting it going, here’s what I took away from JD’s review: bend your elbow so your forearm and hand are parallel to the floor, and the back of your hand facing up. Now gently flip your thumb up and pinky down, allowing your forearm to rotate with your hand. Then gently return the thumb down and the back of your hand up. Repeat.That’s the motion that works to get the ball rolling and stay rolling. After you’ve figured that out, try it with the ball in hand and safety strap around your wrist. After THAT, wind up the ball with your thumbs, winding in the direction of the arrows, get it into position while holding the ball still with your thumb, get it into position and start up the ball motion, using the rotations of your hand.The motion is actually rather gentle and smallish, no need to jerk your hand around. Once you have the motion and ball going, you can change the position of your hand and arm to work different muscles.Great stuff!
J**
Is Everything It Claims To Be !
Took me 15 minutes or so of frustration trying to get started. Wound it up OK - but couldn't get the gyro going at first. Directions didn't help. But once I got it going - - it was amazing.it is well made - worked right out of the box and Ive had not problems with it at all.To get started - you don't 'rotate' your wrist - that creates counter force. Keep wrist locked and hand locked and rotate them both. Your forearm will be rotating to. Rocking motion with the ball- thumb up and down opposite of pinky going down and up. So your hand, wrist and forearm are going 180 in one direction then 180 in the other. Fast. Then, when it 'catches - you can do different motions. At first, I could only do 2 minutes. But you can build up, as you strengthen your muscles.
I**S
This is a great workout for your forearms, wrists, and hands
It's pronounced "jeye-roh" such that 'jeye' sounds like the 'J' in jump, and 'roh' sounds like the 'r' in run followed by 'oh' like the 'o' in nose.I was first introduced to the Dynabee -- the original maker of these gyro-type balls. I used it for a long time and it did great things for my forearms, my wrists, and my hands. And then I put it away and last week -- nearly 34 years later -- I ran across it in a drawer. Unfortunately, because of the internal accumulated dust, it didn't spin in the horizontal direction anymore so it wouldn't start. The original Dynabees didn't have an auto-start feature and they came with a pull cord that you could start it with. After getting the hang of it, it was much easier to just roll it down my leg between the hip and the knee to start it. Still, the auto-start feature of this Gyro Ball is a great enhancement to these balls.I took this Gyro Ball out of the box and started it on the first try. It's got a really smooth action and although I can't get it going as fast as I used to get the Dynabees going, it works really well. And not getting it going as fast could just be a function of my arms, wrists, and hands aren't as strong as they were 34 years ago. Still, I was able to get it going faster than 10,000 rpm. It sounds like a jet engine spinning up as you get it going faster and faster.Starting it is really easy when you get the hang of it. Move your hand in large circles, like you're putting on the lid from a large pickle jar. And do it quickly. Once the ball starts, the sound will change and it will start to hum. As it starts to hum, you can make smaller and smaller circles with your hand to keep it going or maintain the speed. Go back to bigger circles and move your hand faster to increase the speed. Keep in mind, slowing it down, its motion will want to rip the ball out of your hand, so hang on tight. With practice, you will find the "neutral" spot where you can hold it and it won't try to rip itself out of your hand as it slows down. From high speed, high RPMs, it can take 30 seconds to slow down and stop.The old Dynabees didn't come with a wrist strap. For beginners, that's probably a nice enhancement. But I don't want it and I don't use it. I work one hand/arm until it's burning so bad that I can't keep going and then I change hands and work the other hand. 34 years ago, I could keep it going non-stop for more than 3 hours that way. Now, my arms are really tired after less than 30 minutes. My goal is to get back to 3+ hours. But the wrist strap just gets in the way when I'm trying to switch hands. So I don't use it.I took off 1 star because I was looking forward to having the LED lights. But the instruction manual that came with it says: Note: not all units have LED lights. That was a disappointment. That's a bit like bait and switch. I bought this one because of the LED lights, and then it doesn't have them. Oh well. My old one didn't either. I'm not going to return this over that.
F**N
great for strengthening wrist and grip
The winding start feature is great. I had one in the past which required a string to start and that was a hassle. However, with this model you wind it up and release and it starts up easily. It comes with a nice case and wrist strap is included.
T**M
Let a young person show you haw if you are having problems.
I was about ready to return this because I could not get it to work, even after looking at the videos. My nephew (younger generation) showed me how and now it is great. Key for me seems to wind it up good and make slower movements at first to "feel" the ball moving.
J**O
Great to build forearm muscle
This thing is super cool. Take a couple of tries to get it down but helps strengthen your grip and is super compact to take anywhere.
M**C
Interesting
I thought this would be fun but I can’t figure out how to do it. Of course I haven’t gone on the website so maybe I should do that. The little booklet that came with it really was no help.
N**L
Takes some effort to understand how it works - but nice!
The media could not be loaded. Got the product today. Was excited. I read the instructions, watch the videos. Got the center rotor taught and nice and let go and started moving my wrist. Sensed that it was starting off to get internal energy going and saw some lights.. But fizzled out within 10 seconds or so. I have tried this 20 times and more - trying to see if there is extra skill involved but same negative results. Asked for a replacement. If that does not work, will ask for a return.------ UPDATE --------After watching a youtube video and trying it a couple of times, I got it to work. I just had to move the wrist in a twisty motion and it got to work. Full disclosure - I tried doing it multiple times following exact steps as in the video clips in the reviews and it did not work - until I tried a method clearly described in a youtube short.