Voltyx
KraftBoost Pro | Versatile Home Fitness Device with 3 Levels
€61,95
Volume discounts
Planning to purchase multiple electrical or household appliances? We offer attractive quantity discounts with customized package prices. Contact us for a personal quote.
Customer service
Do you have any questions or need help? Our team is happy to assist you.
We are available on weekdays from 09:00 to 17:00 (CET).
📧 Email: info@voltyx.de
📞 Phone: +447888395753
Delivery Time
Our current processing time is 1–5 business days before the order is shipped. After shipment, delivery usually takes 1–5 business days within Germany (DHL) and to the USA (USPS), depending on the shipping service provider
Return
With us, you have a 30-day return policy – valid from the day you receive the goods.
If you wish to return an item, please contact us at:
📧 Email: info@voltyx.de
€61,95
€61,95
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KraftBoost Trainer | Build strength and muscle mass conveniently from home!
Are you tired of paying high gym membership fees and still seeing little progress? The KraftBoost Trainer is the simple solution to effectively build muscle and reduce fat – without complicated equipment.

Versatile and User-Friendly
Thanks to its special U-shape and three adjustable levels, the KraftBoost Trainer adapts to any hand size. Whether you're new to training or already experienced, this device enables safe and effective muscle training without the risk of injury.

Comprehensive Training Device for All Muscle Groups
The KraftBoost Trainer simultaneously activates shoulders, chest, core, and back. Through its ergonomic design and clever mechanism, you maximize your workout and achieve optimal results. This promotes a firmer body and better posture in just one session.

Sustainable, Space-Saving & Ideal for Home
Made from high-quality materials, the trainer is robust and durable. Thanks to its compact design, it can be easily stored, perfect for home use without taking up much space. Train whenever you want, with no fuss.

Fast Results Visible in Just 30 Days
With just a few minutes of training per day, you will notice changes in a short time. 91% of users reported having more muscle mass and less body fat within 30 days. Whether you focus on firmer arms, a strong chest, or a stable core – the KraftBoost Trainer delivers visible results without having to spend hours at the gym.

Specifications of the KraftBoost Trainer
- Product Type: U-shaped arm trainer for home workouts
- Adjustable Levels: 3 levels – adaptable to hand size
- Material: High-quality ABS & TPR plastic with steel core
- Training Zones: Shoulders, chest, back, abdominal muscles
- Usage: Indoor and outdoor, suitable for beginners and advanced users
- Dimensions: Compact design, easy to store
- Scope of Delivery: Exercise instructions for various muscle groups
- Weight: Lightweight for easy handling

FAQ: Frequently Asked Questions about the KraftBoost Trainer
1. How do I adjust the levels?
You can easily adjust the levels to the size of your arms to ensure a comfortable grip by using the push buttons.
2. Is the trainer suitable for beginners?
Yes, the ergonomic shape makes it ideal for both beginners and advanced users.
3. Can I train different muscle groups with the trainer?
Absolutely, the device is designed to strengthen shoulders, chest, back, arms, and core.
4. How do I care for the KraftBoost Trainer?
Simply wipe the device with a dry cloth after use; no special care products are required.
5. Is the device safe to use?
Yes, the design minimizes the risk of incorrect techniques and injuries during training.

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