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FEIERDUN Adjustable Dumbbells, 20/30/40/45/70/90lbs Free Weight Set with Connector, 5 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Weight Plate, Fitness Exercises for Home Gym Suitable Men/Women

  • Based on 362 reviews
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Availability: In Stock.
Fulfilled by FED Fitness

Arrives Dec 26 – Dec 30
Order within 22 hours and 2 minutes
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Style: F.90LB(45LB Pair)


Features

  • 5 in 1 Multifunctional Dumbbell SetWith it, you can get a pair of dumbbells also barbells, kettlebells, weight plate,and push-up stands, which help you do many exercises including bench presses, squats, etc.
  • More Weight OptionsThe dumbbell pieces feature a detachable design, and the adjustable weight range for the single dumbbell is 8 lbs-45 lbs, the kettlebell is 5 lbs-29.5 lbs, and the barbell is 10 lbs-91 lbs. Suitable for beginners to professionals, it meets your exercise intensity needs in different stages in just one device. Installation is easy.
  • Durable & OdorlessEnvironmentally dumbbell pieces' exterior is made of high-quality PE materials, and the inside is mixed with iron, mud, and sand, which effectively prevents floor abrasion. No rust, no smell. Please use it with confidence!
  • Non-slip Dumbbell BarThe surface of the dumbbell bar is made of ABS environmentally material and attached to a non-slip texture, which strengthens the friction of the hand and helps you control the dumbbell better during exercise.
  • 20MM Thickened FoamThe barbell connecting rod is made of a 5mm thick steel tube + 20mm thick high-quality foam. The curved design fits the neck, which is non-slip and sweat-absorbing, soft and breathable, bringing a more comfortable exercise experience to you.
  • Safety NutsThe sets contain four safety nuts. Nut thread thickening effectively keeps the dumbbell piece solid, to prevent movement shaking. Ensure your safety in use.
  • Brand SupportFEIERDUN is always due to providing our customers with the best service. If our product could not meet your expectations, please feel free to contact us, and we will respond within 12 hours.

Brand: FEIERDUN


Color: F.90LB(45LB Pair)


Item Weight: 90 Pounds


Material: Plastic


Special Feature: ①Adjustable Weight ②5-in-1:dumbbells,barbells, kettlebells, weight plate,push-up stands ③Home workout ④Build quality ⑤Ease of use ⑥Versatility See more


Brand: ‎FEIERDUN


Color: ‎F.90LB(45LB Pair)


Item Weight: ‎90 Pounds


Material: ‎Plastic


Special Feature: ‎①Adjustable Weight ②5-in-1:dumbbells,barbells, kettlebells, weight plate,push-up stands ③Home workout ④Build quality ⑤Ease of use ⑥Versatility


Product Dimensions: ‎22.45"L x 12.6"W


Style: ‎F.90LB(45LB Pair)


Handle Diameter: ‎5 millimeters


Handle Material: ‎Alloy Steel


Number of Pieces: ‎2


Set Name: ‎F.90LB(45LB Pair)


Manufacturer: ‎FEIERDUN


Item Package Dimensions L x W x H: ‎22 x 14 x 13 inches


Package Weight: ‎44.25 Kilograms


Item Dimensions LxWxH: ‎22.45 x 12.6 x 12.6 inches


Brand Name: ‎FEIERDUN


Part Number: ‎FED-90


Size: ‎22.45 inches (L) x 12.6 inches (W)


Date First Available: July 26, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 26 – Dec 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Easy Workouts!
Style: F.90LB(45LB Pair)
Easy to use, a little tedious to reconfigure every time you want to change handles, but I’m not in a rush when I workout anyway. Weights are easy to adjust, versatile for exercise plans, comfortable in the hand, and feel like good quality. Overall worth the money!
Reviewed in the United States on September 29, 2025 by Michael

  • Came as advertised
Style: F.90LB(45LB Pair)
Just opened it, everything seems to be included and intact ( I have to double check because I just skimmed over everything). I haven't tried it out as yet but I'll update on that as soon as I do. Quality seems pretty good for it not being full metal. Only thing I did not like was the box was falling apart from the weights but other than that I'm pleased that my order came as advertised. I can't afford a gym membership so why not start with something affordable that I can use at home. I'll be sure to get back on how it turns out after using it. ... show more
Reviewed in the United States on June 22, 2025 by Kamme

  • Just fine for a home gym
Style: F.90LB(45LB Pair)
Quality is fine, all plastic, and I think the weights are just sand or something similar but just fine for a home gym. It is a bit annoying to have to unscrew everything when switching up workouts but that's just how they work. I think for the price they are great.
Reviewed in the United States on July 17, 2025 by Ty

  • Unsafe Product
Style: F.90LB(45LB Pair)
I am writing to formally express my disappointment and concern regarding a recent purchase. After opening the product and disposing of all the packaging, I attempted to use it the following day. Unfortunately, I discovered that the product was torn and damaged, with parts loosely rattling inside. After just one use, the connector of the barbell broke, which is completely unacceptable and unsafe. I have attached photos for your reference. This experience has raised serious safety concerns, and I believe the product is defective and not fit for use. I contacted your customer service team immediately after the incident. I was told that the seller would reach out within 24-48 hours, but I have not received any communication for over five days. When I followed up, I was informed that I need to purchase a new box and return the item, which I find unreasonable given the circumstances. ... show more
Reviewed in the United States on July 7, 2025 by Teshome baye Teshome baye

  • Adjustable and simple to use
Style: F.90LB(45LB Pair)
The whole set arrived on time and intact. No missing pieces. Simple to use and worth what I paid for.
Reviewed in the United States on November 26, 2025 by Michael A.

  • Takes forever to change the weight...
Style: F.90LB(45LB Pair)
They get the job done... But... I bought these to replace some adjustable weights that I had to leave when I moved, but these are just not the same... I appreciate that these have a bar & kettle bell option, which is why I got them, but I just can't justify spending minutes between every set adjusting the weight. The ones I had previously, you could literally twist them and adjust the weight with a click. These, obviously, you need to take the plates off and put new ones on every time you want to adjust the weight. Not to mention, some weights just aren't possible with the available plates. Of course, I knew that this would be the case when buying them, I just didn't realize how annoying I would find it to adjust the weights all the time. I already don't have oodles of time to workout, so having to sit there and figure out which plates I would need, and having to try and minimize the amount of weight changes I would need to do during the workout... It's just not worth it for me. If you are in no rush / don't really care about this at all, then yeah, these are fine. But if you are already in a time crunch with workouts, maybe look for ones that are easier to adjust... Pros: - The bar & kettle bell option are really nice - Nice grips, comfortable - Comes with little weight-lifting gloves Cons: - You spend a lot of them adjusting the weight between sets - Takes up a lot of room - The fact that you need to stack up plates to reach a certain weight makes it sometimes awkward to hold/position because the dumbbell needs to be so wide (but this is true for pretty much all adjustable weights) TLDR; If you don't mind having to take off + put on plates between sets to adjust the weight, then these are a fine option. If you already have a short time to work out, look for different adjustable weights. ... show more
Reviewed in the United States on June 8, 2025 by Heather

  • Good
Style: F.90LB(45LB Pair)
Good quality
Reviewed in the United States on October 23, 2025 by JPX

  • Good for home workout
Style: F.90LB(45LB Pair)
A lot of adjustability with weights, nice getting to combine them to make a barbell. Only downside is the time it takes to screw down the nuts when using both dumbbells vs the dumbbells where you twist to pick weight. But still the flexibility between dumbbells and barbells is a big win for someone like me where I don’t have a lot of space to store things. ... show more
Reviewed in the United States on May 27, 2025 by Michael Wodarski

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