---
product_id: 549856348
title: "Grip Strength Trainer Tester, Hand Grip Strengthener Dynamometer, Forearm Finger Strengthener, Stress Balls for Adults/Kids, Rechargeable Digital Grip Strength Tester (220.4Lbs/100kg)"
brand: "diotuss"
price: "€ 2.32"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/549856348-grip-strength-trainer-tester-hand-grip-strengthener-dynamometer-forearm-finger
store_origin: NL
region: Netherlands
---

# Digital strength readout up to 220.4 lbs 500mAh rechargeable battery Ergonomic silicone grip for all finger sizes Grip Strength Trainer Tester, Hand Grip Strengthener Dynamometer, Forearm Finger Strengthener, Stress Balls for Adults/Kids, Rechargeable Digital Grip Strength Tester (220.4Lbs/100kg)

**Brand:** diotuss
**Price:** € 2.32
**Availability:** ✅ In Stock

## Summary

> 💪 Unlock your ultimate grip power—track, train, and triumph!

## Quick Answers

- **What is this?** Grip Strength Trainer Tester, Hand Grip Strengthener Dynamometer, Forearm Finger Strengthener, Stress Balls for Adults/Kids, Rechargeable Digital Grip Strength Tester (220.4Lbs/100kg) by diotuss
- **How much does it cost?** € 2.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/549856348-grip-strength-trainer-tester-hand-grip-strengthener-dynamometer-forearm-finger)

## Best For

- diotuss enthusiasts

## Why This Product

- Trusted diotuss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Age Versatility:** Perfect for athletes, musicians, rehab patients, and kids—challenge friends or recover stronger.
- • **Powerful & Portable:** Rechargeable 500mAh battery with just 2.5 hours charging for long-lasting, eco-friendly use.
- • **Instant Digital Feedback:** See your grip strength score in real-time with a crisp digital display that resets automatically.
- • **Ergonomic & Inclusive Design:** Silicone grip with grooved fingerprint path fits all hand sizes comfortably—no more limits.
- • **Stress Relief Meets Performance:** Dual-purpose stress ball and strength trainer to boost finger agility and reduce workday tension.

## Overview

The DIOTUSS Grip Strength Trainer Tester is a rechargeable, digital dynamometer that measures grip strength up to 220.4 lbs. Featuring an ergonomic silicone design with a grooved fingerprint path, it fits all hand sizes comfortably. The device offers instant digital feedback on a clear screen, powered by a 500mAh battery with a quick 2.5-hour charge. Ideal for stress relief, fitness, rehabilitation, and interactive challenges, it suits users of all ages and skill levels.

## Description

Professional Team After-sales Service: DIOTUSS grip strength testers with color boxes, suitable for gifting to your family and friends on Memorial Day, Father’s Day, Mother’s Day, Thanksgiving Day, Christmas, birthdays and other festivals. Proper wrist strengthener training can make people Keep them happy and give them a better and healthier lifestyle.

## Features

- 500mAh Rechargeable Grip Strength Tester: You hold the grip trainer firmly, and the dynamic strength number will be automatically displayed. After you let go, the result number will be displayed for 3 seconds and then the screen will be reset and off. The digital dynamometer can be charged, with lower power consumption, environmental protection and long service life. Stimulate your inner desire to challenge, let us work together! Charging Time only need 2.5H.
- Digital Screen Squeeze Stress Relief Ball: Still because of the size of the fingers or can't calculate the strength better? DIOTUSS forearm strengthener helps you solve the problem of hand grip training. The grooved fingerprint path conforms to the ergonomics, and you can let go of the limitation of your finger size infinitely. The digital workout equipment allows you to see the process and results of your strength at all times, and can record your every hand exercisers for strength record.
- Forearm Grip Resistance 220.4 Lbs(100kg): The gripster made of comfortable and durable silicone, so you will not worry about calluses or sprained hands due to hand grip Strength training, making your finger strength training more enjoyable and easy to clean. Stress ballS help you release stress, alleviate problems such as holding a pen long and using a computer keyboard and mouse when studying and working, and make your fingers more flexible and agile.
- Grip Strength Trainer for Men and Women of All Ages: Hand strengthener grip for Kids Interactive Challenges prriendship; workout equipments are also great for adults Decompression grip balls enhance finger and wrist flexibility for rock climbers, tennis players, athletes and musicians； Rehabilitation in need of recovery from hand injuries, rheumatoid arthritis, arthritis, carpal tunnel, tendonitis, fractures, wrist fractures and tendon surgery providesphysical therapy equipment.
- Professional Team After-sales Service: DIOTUSS grip strength testers with color boxes, suitable for gifting to your family and friends on Memorial Day, Father’s Day, Mother’s Day, Thanksgiving Day, Christmas, birthdays and other festivals. Proper wrist strengthener training can make people Keep them happy and give them a better and healthier lifestyle. If you have any issues during use, you can contact us immediately, and we will provide you with the most satisfactory reply within 12 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Brown |
| Material | Silicone |
| Brand | DIOTUSS |
| Item Weight | 0.22 Pounds |
| Style | All |
| Tension Level | 220.4 Lbs |
| Product Dimensions | 3.2"L x 1.6"W |
| Shape | Round |
| UPC | 774196497905 |
| Manufacturer | DIOTUSS |
| Item Package Dimensions L x W x H | 4.33 x 3.15 x 1.85 inches |
| Package Weight | 0.15 Kilograms |
| Item Dimensions  LxWxH | 3.2 x 1.6 x 0.1 inches |
| Brand Name | DIOTUSS |
| Part Number | WLQ-BR-E1 |

## Product Details

- **Color:** Brown
- **Material:** Silicone
- **Brand:** DIOTUSS
- **Item Weight:** 0.22 Pounds
- **Style:** All

## Images

![Grip Strength Trainer Tester, Hand Grip Strengthener Dynamometer, Forearm Finger Strengthener, Stress Balls for Adults/Kids, Rechargeable Digital Grip Strength Tester (220.4Lbs/100kg) - Image 1](https://m.media-amazon.com/images/I/61RPOtENrdL.jpg)
![Grip Strength Trainer Tester, Hand Grip Strengthener Dynamometer, Forearm Finger Strengthener, Stress Balls for Adults/Kids, Rechargeable Digital Grip Strength Tester (220.4Lbs/100kg) - Image 2](https://m.media-amazon.com/images/I/71OahPhq9hL.jpg)
![Grip Strength Trainer Tester, Hand Grip Strengthener Dynamometer, Forearm Finger Strengthener, Stress Balls for Adults/Kids, Rechargeable Digital Grip Strength Tester (220.4Lbs/100kg) - Image 3](https://m.media-amazon.com/images/I/71QRGEZ3VCL.jpg)
![Grip Strength Trainer Tester, Hand Grip Strengthener Dynamometer, Forearm Finger Strengthener, Stress Balls for Adults/Kids, Rechargeable Digital Grip Strength Tester (220.4Lbs/100kg) - Image 4](https://m.media-amazon.com/images/I/71IW0SL0vJL.jpg)
![Grip Strength Trainer Tester, Hand Grip Strengthener Dynamometer, Forearm Finger Strengthener, Stress Balls for Adults/Kids, Rechargeable Digital Grip Strength Tester (220.4Lbs/100kg) - Image 5](https://m.media-amazon.com/images/I/71onURXHllL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great!
*by D***. on April 30, 2025*

Perfect for school science project!

### ⭐⭐⭐⭐⭐ Very fun to see who can get the highest number
*by B***2 on May 6, 2024*

Took this to work and a few gatherings and everyone wanted to see who could get the highest number when squeezing the football. It records a number the harder you squeeze it. Even the kids wanted to do it. The hand gripper has a rechargeable battery as well which takes a USB C to recharge. You can see your progress over time as your number will get higher the more you squeeze it. Can be used for exercise or fun or both.

### ⭐⭐⭐⭐ Not accurate but still useful
*by U***M on March 2, 2024*

If I place my index, middle and ring fingers flat on the three grooves on the ball, I’ll get a reading that seems skewed to the low side as I squeeze. I say this because, if I were to place the tips of those fingers on the grooves and squeeze, I get another, significantly higher reading (even though I can’t squeeze as hard using my fingertips).Also , however hard I squeeze this ball, the reading is substantially lower than what I get on my Camry dynamometer. I trust the latter more than the Diotuss ball because I have verified various users’ grip strength using the Camry.Therefore my sense is that the Diotuss product is useful mainly to track progress on grip strength, on a relative basis (as long as one is careful to use consistent finger placement), and should not be relied on for measuring grip strength per se. The other mildly positive aspect of the product is that, being a round shape, it is slightly more comfortable to use than the dynamometer. That said, the ball seems small relative to men’s size L or XL hands; fingertips on such hands tend to reach and partially obstruct the little screen that shows the amount of pressure being exerted on the ball.3/6/24 update: after the above review was posted, the seller reached out to me and offered to issue a full refund or send me another, upgraded grip ball of theirs. I actually declined their offer because, as I wrote above, the grip ball I have is still useful for training and tracking progress on my grip strength. I should also add that, given its small size, and the feedback on the pressure exerted, it does lend itself to being used several times a day. While it would have been nice to get a precise measurement of grip strength each time this ball is used, the most important thing for me is that it gets used. Moreover, I have always maintained that you buy customer service together with a product, and in this case the seller has demonstrated an earnest desire to make customers of their products happy. Therefore I am adding a star to my review (despite not receiving any financial or material benefit from this follow-up review).

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*