---
product_id: 449059908
title: "FEIERDUN Adjustable Dumbbells, 20/30/40/50/60/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable"
brand: "feierdun"
price: "$1061.31"
currency: USD
in_stock: true
reviews_count: 5
category: "Feierdun"
url: https://www.desertcart.us/products/449059908-feierdun-adjustable-dumbbells-20-30-40-50-60-70-90lbs
store_origin: US
region: United States of America
---

# 20mm thick foam grip, sweat-absorbent Safety nuts prevent weight movement Adjustable 6-22.5 lbs per dumbbell FEIERDUN Adjustable Dumbbells, 20/30/40/50/60/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable

**Brand:** feierdun
**Price:** $1061.31
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your home workouts with pro-level versatility and grip!

## Quick Answers

- **What is this?** FEIERDUN Adjustable Dumbbells, 20/30/40/50/60/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable by feierdun
- **How much does it cost?** $1061.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/449059908-feierdun-adjustable-dumbbells-20-30-40-50-60-70-90lbs)

## Best For

- feierdun enthusiasts

## Why This Product

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

## Key Features

- • **Ergonomic Foam Grip:** 20mm thick, sweat-absorbing foam ensures a secure, comfortable hold for longer, focused sessions.
- • **Sleek, Durable Build:** ABS non-slip textured bars combined with alloy steel deliver professional-grade durability and style.
- • **Secure Locking System:** Four reinforced safety nuts with thickened threads guarantee stability and safety during every lift.
- • **Multi-Functional Design:** Transforms effortlessly into dumbbells, barbells, kettlebells, or push-up stands—your all-in-one home gym essential.
- • **Customizable Weight Range:** Seamlessly switch from 20 to 90 lbs to match every workout intensity and progression.

## Overview

FEIERDUN Adjustable Dumbbells offer a versatile 4-in-1 fitness solution with weights adjustable from 6 to 22.5 lbs per dumbbell, featuring a thick 20mm foam grip for comfort and non-slip ABS bars for control. Equipped with safety nuts to lock plates securely, this set converts into barbells, kettlebells, and push-up stands, making it perfect for dynamic home gym routines.

## Description

Shop FEIERDUN Adjustable Dumbbells, 45lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable Men/Women. Free delivery and returns on all eligible orders.

Review: 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.
Review: I really like this Dumbbell set. It has nice feel to the texture. And although plastic, (or perhaps vinyl), they don’t feel cheap. The set looks good, too. I like the Orange and Black look, compared to the other Red and Black sets available. I also really like that you can spin the orange locking nuts on by giving them a good hard spin - and they'll keep going - sometimes all the way on, (depending on how hard you initially spin them), without having to constantly keep turning and cracking them all the way on. (Same with removing them.) The orange locking nuts have 2 opposing 'extended nubs' on them, to aid in cranking them down tight. There is a foam-padded area on the center bar that would touch or rest on the back of your neck, when using the bar fully extended with both arms. The two shorter individual threaded bars turn in quite far - all the way into the center bar for added stability. There are also 2 Kettle Ball Handles, and a dedicated Kettle Ball End Piece, which helps me keep a controlled grip on them, when slowly and carefully using the weights to dip behind my back and shoulders, (among other alternate exercises). The spacious openings of the Kettle Ball Handles are plenty wide enough, as well, (if two hands are required or preferred), allowing for different positions to hold, grasp, and maneuver them. For a really good product, it’s very well priced, compared to the other options available. I’m happy with the set! [One Word of Caution: I would caution against dropping them, though, as they are most likely filled with sand, (or something similar), and could therefore crack and split open, if dropped from high enough up. There is a bit of a slippery feel to them to be aware of.] Each Dumbbell arrived individually protected in its own soft sleeve.

## Features

- 【20MM Thickened Foam】The connecting rod is made of a 5mm thick steel tube + 20mm thick high-quality foam. Curved design fits the neck, which is non-slip and sweat-absorbing, soft and breathable, bringing a more comfortable exercise experience to you.
- 【Non-slip Dumbbell Bar】The 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.
- 【Safety Nuts】The sets contain four safety nuts. Nut thread thickening effectively keeps the dumbbell piece solid, to prevent movement shaking. Ensure your safety in use.
- 【More Weight Options】The dumbbell pieces feature a detachable design, and the adjustable weight range for the single dumbbell is 6lbs-22.5lbs, which meets your exercise intensity needs in different stages. Installation is easy.
- 【Brand Support】FEIERDUN always due to providing our customers with the best service. If our product could not meet your expectations, please feel free to contact us, we will respond within 12 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09FYTG37V |
| Batteries included? | No |
| Brand | FEIERDUN |
| Color | 45LB |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,218) |
| Date First Available | 11 Sept. 2021 |
| Features | Adjustable, Non-Slip |
| Item model number | D1ND05PR |
| Manufacturer | FEIERDUN |
| Material type | Acrylonitrile Butadiene Styrene (ABS), Alloy Steel |
| Number of items | 4 |
| Number of pieces | 1 |
| Product Dimensions | 57.91 x 30.48 x 30.48 cm; 22.68 kg |
| Size | 44LB |
| Style | D.45LB(22.5LB Pair) |
| Weight | 19.96 kg |

## Product Details

- **Brand:** FEIERDUN
- **Colour:** 45LB
- **Item weight:** 50 Pounds
- **Material:** Acrylonitrile Butadiene Styrene (ABS), Alloy Steel
- **Special feature:** Adjustable, Non-Slip

## Images

![FEIERDUN Adjustable Dumbbells, 20/30/40/50/60/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable - Image 1](https://m.media-amazon.com/images/I/71BE37ZZfLL.jpg)
![FEIERDUN Adjustable Dumbbells, 20/30/40/50/60/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable - Image 2](https://m.media-amazon.com/images/I/81ExqMYn0dL.jpg)
![FEIERDUN Adjustable Dumbbells, 20/30/40/50/60/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable - Image 3](https://m.media-amazon.com/images/I/81I0ggopAQL.jpg)
![FEIERDUN Adjustable Dumbbells, 20/30/40/50/60/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable - Image 4](https://m.media-amazon.com/images/I/81VkN7qgLOL.jpg)
![FEIERDUN Adjustable Dumbbells, 20/30/40/50/60/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable - Image 5](https://m.media-amazon.com/images/I/81nYNkYRfnL.jpg)

## Questions & Answers

**Q: Is it possible to order more weights?**
A: Where at? I was trying to look these up and was not able to find the exact same weights.

**Q: Does the rack comes with the set?**
A: No there is no rack.

**Q: Where can you order extra weights or parts like the nuts?**
A: i lost mine and contacted the seller.

**Q: Does this set work with other weights from this same company? Or can you only go up to the specified weight?**
A: I liken it to the older style of weights

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by Z***N on 23 November 2025*

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.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 18 June 2024*

I really like this Dumbbell set. It has nice feel to the texture. And although plastic, (or perhaps vinyl), they don’t feel cheap. The set looks good, too. I like the Orange and Black look, compared to the other Red and Black sets available. I also really like that you can spin the orange locking nuts on by giving them a good hard spin - and they'll keep going - sometimes all the way on, (depending on how hard you initially spin them), without having to constantly keep turning and cracking them all the way on. (Same with removing them.) The orange locking nuts have 2 opposing 'extended nubs' on them, to aid in cranking them down tight. There is a foam-padded area on the center bar that would touch or rest on the back of your neck, when using the bar fully extended with both arms. The two shorter individual threaded bars turn in quite far - all the way into the center bar for added stability. There are also 2 Kettle Ball Handles, and a dedicated Kettle Ball End Piece, which helps me keep a controlled grip on them, when slowly and carefully using the weights to dip behind my back and shoulders, (among other alternate exercises). The spacious openings of the Kettle Ball Handles are plenty wide enough, as well, (if two hands are required or preferred), allowing for different positions to hold, grasp, and maneuver them. For a really good product, it’s very well priced, compared to the other options available. I’m happy with the set! [One Word of Caution: I would caution against dropping them, though, as they are most likely filled with sand, (or something similar), and could therefore crack and split open, if dropped from high enough up. There is a bit of a slippery feel to them to be aware of.] Each Dumbbell arrived individually protected in its own soft sleeve.

### ⭐⭐⭐⭐⭐ Review
*by B***Y on 30 June 2023*

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.

## Frequently Bought Together

- 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
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-02*