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
Condition: New
Buy Now, Pay Later
As low as
$10.00
/ mo
Learn more
- – 6-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
30-day refund / replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 5 left in stock, order soon!
Arrives
Tuesday, Mar 10
Style: A.20LB(10LB 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 5 lbs-10 lbs, the kettlebell is 3.5 lbs-11.5 lbs, and the barbell is 7 lbs-21 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: A.20LB(10LB Pair)
Item Weight: 20 Pounds
Material: Alloy Steel, Iron, Polyethylene (PE)
Special Feature: Adjustable
Brand: FEIERDUN
Color: A.20LB(10LB Pair)
Item Weight: 20 Pounds
Material: Alloy Steel, Iron, Polyethylene (PE)
Special Feature: Adjustable
Style: A.20LB(10LB Pair)
Handle Diameter: 1 inches
Handle Material: Alloy Steel
Number of Pieces: 4
Set Name: 4 in 1 Multifunctional Dumbbell Set
Number of Items: 4
Manufacturer: FEIERDUN
Item Package Dimensions L x W x H: 16 x 12 x 6.12 inches
Package Weight: 10.77 Kilograms
Item Dimensions LxWxH: 0.79 x 0.79 x 0.79 inches
Brand Name: FEIERDUN
Part Number: FED-DUM-ADLY-A-01
Date First Available: April 18, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Mar 10
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Style: D.45LB(22.5LB Pair)
I am in love with this. Grip, look, well built though and built, easy installation, feel like a genuine weight lifting equipment, and value of money is excellent. Easy to adjust after each workout. Who ever designed this and made this, really put his or her brains behind this product.
Reviewed in the United States on November 23, 2025 by Zehra N Zehra N
Style: D.45LB(22.5LB Pair)
Edited: Contacted Feierdun CS about a second kettle ball pin, and received outstanding service. Rating revised: Solid five stars. Original review: I am delighted with this set. Yes, the plastic does feel a bit cheap, and I'd be concerned about the nuts not holding up, but I have standard issue dumbbell poles, squat bar, nuts, and clamps, and these weights fit perfect on the regular metal bar and dumbbell bars that I have. For what this is, it's an amazing value -- truly. But I'm not worried about the plastic bars and nuts holding up, so understand that. I needed more weights, and the versatility and quality of these plastic covered plates is awesome -- I do love the plastic coated weights more than the old school no coating metal plates. I had a huge set at one time, had to downsize to the 2.5 + 5 pound plates when I moved. I've been putting together a new home gym, and when these came as a lightening deal, I caved to the marketing -- but it really was a good deal, and I can now use my choice of bars, and have plenty of weights to work with. The only thing that would make this better would be if the chest press/kettle ball came with a second pin so that we could make two kettle balls, not just one. Many kettle ball routines use a kettle ball in each hand, and I don't think you can buy the little stem separately. That would be awesome -- perhaps the seller will allow a separate purchase. Anyway, this set is a great addition to my evolving home gym. I'd probably be less excited if I didn't have my own standard gym bar and dumbbell sets, but that's okay. I think this would be an excellent set for anyone just getting started.
...
show more
Reviewed in the United States on June 30, 2023 by Bleuday
Style: A.20LB(10LB Pair)
I bought this for my husband the 20 pound weight set for Christmas and turning 40 this year I wanted to work on myself and started to use them and fell in love. They are easy to a symbol they are light weight the quality is amazing with grip for easy support with two sets of different wheigt you can go back and forth with easy whist locks you can really feel the barn even after a 10 min workout
...
show more
Reviewed in the United States on February 2, 2026 by Leigh Vernon
Style: H.68LB(34LB Pair)
These have been great for adding to my Ladder app Pilates workouts. I wish you could buy more of the parts like the plastic nuts to replace or make it so the kettlebell can be set up while the dumbbells are too. It would also be great to be able to purchase additional weights separately so you could increase your weight without buying a whole new set. They are obviously bigger than the normal dumbbells or plates but it hasn’t hindered me too much. The padded barbell is a great addition.
...
show more
Reviewed in the United States on January 28, 2026 by Kaitlin
Style: D.45LB(22.5LB Pair)
Pretty good set I had an issue with the dumbbell bar length but they sent me a refund for my troubles. Great customer service
Reviewed in the United States on February 13, 2026 by Sacred Sacred
Style: D.45LB(22.5LB Pair)
3.5 stars If you are wanting to start working out but not spend money this is a good starter option. It was easy to swap the weights and bars to create the weights. Barbell made for a smaller framed person. We used it until we moved to a plave with a nice gym. It was incredibly convenient.
Reviewed in the United States on December 20, 2025 by Amazon Customer
Style: D.45LB(22.5LB Pair)
Excellent product, highly recommended.
Reviewed in the United States on February 10, 2026 by Princesspridesage3.0
Style: D.45LB(22.5LB Pair)
The FEIERDUN Adjustable Dumbbells are amazing for home workouts! I love how easy it is to switch between weights—20, 30, 40, 45, 70, and 90 lbs—using the connector system. It’s a huge space saver compared to having multiple individual dumbbells. The build quality feels solid and durable, and the grip is comfortable even during intense workouts. Perfect for strength training at home, and the adjustable feature makes it suitable for multiple users or different exercises. Highly recommend for anyone looking for a versatile, high-quality free weight set!
...
show more
Reviewed in the United States on December 17, 2025 by Chelsea D