Peter G.: Well-made, comfortable, good resistance.
United States on Oct 24, 2023
FGM: I purchased these for exercise classes at the Senior Center. They are an excellent size and resistance for the hand and finger exercises that we do. I can easily move them from my palms to my fingers without loosing grip. I am completely satisfied with them.
United States on Oct 21, 2023
Sara: Believe it or not my cat uses these as something to chase and the material being tear resistant is great for when he bites on it!
Canada on Jul 28, 2023
Brian: I keep this in my car to work on my hand strength. People always ask me when they’re riding in my car what is in the ashtray and I show them and they begin squeezing. The first thing they ask her how much are they and where can I get them….
United States on Mar 30, 2023
DTUYI: The stress balls are made very well. I also like that they aren't extremely squishy so you do need to apply some pressure which extactly is the point of stress balls. My hands are small so its perfect for me however for larger hands I think the stress balls could be a touch bigger but they still will do the job.
United States on Jan 03, 2023
Jordan Kobos: Works really well at lowering stress, massaging hands and even has been helpful for me while quitting smoking and drinking.
Canada on Dec 30, 2022
Love it: In all seriousness folks these balls won't satisfy you or your partner. I read the reviews and it seemed 50/50 on how useful these are. It turns out they are by no means a therapy ball if you've ever felt one. A therapy ball requires a reasonable amount of effort to squeeze in order to build/recover muscle strength.
I found the product to be equal in firmness as a foam pillow, which is to say there's barely any resistance at all from either ball. If you've had a bad accident, surgery etc and need to start with absolute minimal resistance then well ok , this may be for you. But for the average person looking to build strength, , they are way to soft and squish with the slightness of effort and thus not going to help at all.
Canada on Jul 28, 2022
PJ McDonnell: Excellent for the purpose
United Kingdom on Jun 06, 2022
Viviane R.: J'ai utilise ce produit pour renforcer ma main.
Malheureusement les balles sont un p eu trop grandes pour ma petite main.
Canada on Apr 01, 2022
| Serenilite Hand Therapy Stress Ball Bundle: Relieve Stress and Exercise Your Hands | NIYIKOW 5-Piece Grip Strength Trainer Kit | Adjustable Hand Gripper: GD Iron Grip Metal Hand Grip Exerciser Strengthener for Wrist and Forearm Strength Training | |
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| B2B Rating |
92
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98
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98
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| Sale off | $6 OFF | $5 OFF | |
| Total Reviews | 32 reviews | 298 reviews | 403 reviews |
| Model Name | Serenilite Dynamic Stress Balls | Hand Grip Strengthener Kit | |
| Part Number | XL1 | GSK-5PKIT-CA | GD_official_IGL.80 |
| Color | Blue, Dark Blue | Black | |
| ASIN | B08MWVJSJR | B0838D4WBB | B06XWQNPRN |
| Manufacturer | Serenilite | NIYIKOW | GD |
| Best Sellers Rank | #34,095 in Sports & Outdoors #166 in Exercise Balls | #37,446 in Sports & Outdoors #165 in Strength Training Grip Strengtheners | #4,528 in Sports & Outdoors #40 in Strength Training Grip Strengtheners |
| Package Weight | 0.13 Kilograms | 0.41 Kilograms | 0.58 Kilograms |
| Outer Material | Lyrca | ||
| Date First Available | April 30, 2021 | December 28, 2019 | March 28, 2017 |
| Material | Thermoplastic Elastomers, Polyurethane Foam | Stainless steel, ABS, TPE Soft Rubber | Compression Spring, Nylon, S45C Carbon Steel, Aluminum, Stainless pin |
| Brand Name | Serenilite | NIYIKOW | GD |
| Style | Stress Balls | Hand Strength, Finger Trainer, Grip Strength Trainer, Hand Grip Strengthener | Hand Strength, Hand Grip Strengthener |
| Customer Reviews | 4.5/5 stars of 589 ratings | 4.5/5 stars of 2,222 ratings | 4.8/5 stars of 3,501 ratings |
| Item Package Dimensions L x W x H | 5.59 x 2.4 x 2.4 inches | 7.32 x 4.41 x 2.28 inches | 8.5 x 5.12 x 1.93 inches |
United States on Oct 29, 2023