Adjustable Dumbbells: 4-in-1 Free Weight Set
Original price was: $109.99.$79.98Current price is: $79.98.
Price: $109.99 - $79.98
(as of Aug 11, 2025 11:31:09 UTC – Details)
Description
Achieve a full-body workout from the comfort of your home with the UNNMIIY 4-in-1 Adjustable Dumbbell Set. This incredibly versatile system transforms from dumbbells to a barbell, kettlebells, and push-up stands, eliminating the need for multiple pieces of equipment. Designed for both men and women, the set features adjustable weights from 10 to 90 pounds, allowing you to customize your routine and progress at your own pace. With a comfortable foam-padded connector, non-slip grips, and enhanced safety nuts, this durable and space-saving set is the perfect, all-in-one solution for any home gym.
Product Details
- Functionality:Â 4-in-1 design serves as Dumbbells, a Barbell, Kettlebells, and Push-up Stands.
- Weight Options:Â Available in total set weights of 10, 25, 35, 55, 70, and 90 lbs.
- Materials:Â High-quality PE exterior with an iron, mud, and sand mix interior; ABS non-slip dumbbell bars.
- Barbell Connector:Â 5mm thick steel tube with 20mm thick, curved foam padding for neck comfort.
- Safety Features:Â Upgraded nuts with thickened threads to securely lock weight plates and prevent shaking.
- Storage Footprint:Â Compact design requires less than 2 square feet of storage space.
Advantages
- All-in-One Workout Solution:Â This single set replaces four different types of gym equipment, saving you significant space and money while enabling a wide variety of exercises like bench presses, squats, and curls.
- Customizable for All Fitness Levels:Â The easily detachable weight plates allow you to adjust the load from as little as 2 lbs up to 22.5 lbs per dumbbell, making it perfect for beginners and allowing for steady progression.
- Enhanced Comfort and Safety:Â The 20mm thick foam on the barbell connector protects your neck and shoulders during heavy lifts, while non-slip grips and upgraded locking nuts ensure a secure and stable workout experience.
Our Recommendations
This adjustable dumbbell set is highly recommended for beginners starting their fitness journey, thanks to its ease of use and customizable weight options. It is also an ideal choice for anyone building a home gym with limited space, as its multi-functionality provides a comprehensive workout without clutter. Finally, it is perfect for budget-conscious individuals seeking a high-value, versatile piece of equipment that can adapt to their growing strength.
Conclusion
The UNNMIIY 4-in-1 Adjustable Dumbbell Set is an outstandingly versatile and practical solution for home fitness. Its ability to function as dumbbells, a barbell, kettlebells, and push-up stands offers incredible value and saves precious space. While the manual weight changes might slow down workouts slightly, its durability, safety features, and suitability for beginners and intermediate users make it a fantastic investment for anyone committed to achieving their fitness goals at home.
8 reviews for Adjustable Dumbbells: 4-in-1 Free Weight Set
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Amazon Customer –
Free Weights Dumbell Set what a great value!!
This is a great product assembly is easy the color is great makes it easy to find , they are with a good grip the size of the dumbbell bar is just right as well. They function well on the bar they don’t move back and forth. They are a great set and are very comfortable to work out with.They are made very sturdy and strong materials. Thank you and look forward to buying more of your products for a great value. Highly recommend this seller!!!
Daniel Nieto –
All-in-One Dumbbell Set for Home Workouts
This dumbbell set exceeded my expectations. The quality of the materials is excellent, and the design is very practical. What I liked the most is its versatility — you can use it as dumbbells, a barbell, or even kettlebells, which makes it perfect for a full home workout without taking up much space.Assembly was very easy and adjusting the weight is quick. Everything fits well and feels secure while using it. It’s ideal for both beginners and more experienced users.Great value for the price. I definitely recommend it if you’re looking for a complete set to train at home.
KP –
Game Changer for Home Gym!
I recently purchased the Adjustable Dumbbells 4-in-1 Set and I have to say, it’s a game-changer for my home gym! This set has completely transformed how I work out—whether I’m targeting strength, conditioning, or functional movements.What I Love:Versatility: This set includes weights ranging from 10 to 90 pounds, which is ideal for a wide range of exercises. The best part? You can easily switch between different configurations—dumbbells, barbell, kettlebells, and even push-up stands! The connector is solid and holds everything together securely, so there’s no risk of it coming apart mid-workout. The ability to mix and match these configurations gives you endless workout possibilities, so you don’t need to invest in a ton of separate equipment.Space-Saving: I’m all about maximizing space, and the adjustable design of these dumbbells makes them perfect for smaller home gyms. I love that I can change weights without having to swap out entire sets of dumbbells or deal with clunky barbells or kettlebells cluttering up the floor.Easy Adjustments: Changing weights is super simple with the quick-lock system. The weights slide off and on effortlessly, and you can easily change the load between sets. The dial mechanism works smoothly, and I haven’t had any issues with it sticking or malfunctioning.Comfort and Durability: The grips are comfortable, even when I’m lifting heavier weights. The material feels robust, and the dumbbells are made to last. I’ve used them for several weeks now, and they still look brand new.Things to Keep in Mind:Learning Curve: If you’re new to adjustable dumbbells, it might take a couple of workouts to get used to adjusting the weight quickly. But once you’ve got the hang of it, it’s super efficient.Not Ideal for Super Fast Movements: For exercises where you’re rapidly switching between weights (like during circuit training), the process of adjusting the dumbbells might slow you down. But for strength training and progressive overload, these are perfect.
Stefan –
Satisfied
It’s been a few months since my purchase and I’d say I’m satisfied with the product for what it is. It’s useable for a variety of exercises and the set doesn’t take up much space. For my purposes the last few months, it’s be sufficient.Things to consider (for reference, I’m 6ft 5in so some downsides for me may not be a problem for others):-Only 4 weights can be added to each side of the bar which limits the amount you can stack.-Definitely good enough certain exercises but don’t expect to be training major lifts to the extreme like you would in a conventional gym. In my case, the bar is too short but there are ways to get around it.-Weight adjustment can take some time.In terms of durability it’s been fine but I don’t recommend putting any major tugging forces on the assembled bar like you would with a conventional barbell.None of the points above have been a deal-breaker for me since I expected most of them when purchasing this product. Overall, I’d say this product is useful for beginners or if you’d just like a cheap way to perform a variety of weighed exercises at home.
Kalee –
Loving it so far!
Works great so far! Very easy to use and switch between the different bars. I also love that it disassembles and can be stored in a small area. Great for my small home gym!
Kit –
easy to assemble and perfect for home workouts!
very easy to put together and also easy to put away as everything can be disassembled. i like that it has a lot of different options to choose from depending on what you want to work on. the only issue i have is that the spacing and grip is kind of awkward when you put all the dumbbel weights and barbell together (see pic #2). other than that i would still recommend this product. it was packaged well and arrived with no damages.
Ruth –
Very complete, just as described
I can’t wait to start using it. It arrived in perfect condition, it has everything you need to do strenght training at home, especially if you are a woman I feel like the 40lb set has enough weight for me before I truly need to add to my training especially since Im starting from scratch again. I am incredibly happy with the purchase. Some parts are plastic, but It feels pretty safe considering its not a ton of weight, if you wanted to go over 40lb Id consider finding something with metal pieces though.
Kimberly –
Multi-purpose dumbbell set.
In my honest opinion, having to screw and unscrew the pieces back together is a bit time-consuming and frustrating. The bars and plates have a strong, oil smell that I’ve tried to get rid of with no success.On the positive side, the product is useful for home workouts if you have the time and patience. The screws do lock in place for me, and the product is made with good quality material. No damages. Easy to use.