---
product_id: 642917540
title: "Adjustable Dumbbell set,20/30/45/70/90lbs Free Weight Set | 5 in1 Dumbbell Set with Connector,Used as Barbell,Kettlebells,Push up Stand,Fitness Exercises for Home Gym Suitable Men/Women"
brand: "unnmiiy"
price: "$664.21"
currency: USD
in_stock: true
reviews_count: 8
category: "Unnmiiy"
url: https://www.desertcart.us/products/642917540-adjustable-dumbbell-set-20-30-45-70-90lbs-free-weight
store_origin: US
region: United States of America
---

# Upgraded locking nuts for safety Durable alloy steel & PE build 5-in-1 multifunctional set Adjustable Dumbbell set,20/30/45/70/90lbs Free Weight Set | 5 in1 Dumbbell Set with Connector,Used as Barbell,Kettlebells,Push up Stand,Fitness Exercises for Home Gym Suitable Men/Women

**Brand:** unnmiiy
**Price:** $664.21
**Availability:** ✅ In Stock

## Summary

> 🔥 Transform your home gym with one set that does it all!

## Quick Answers

- **What is this?** Adjustable Dumbbell set,20/30/45/70/90lbs Free Weight Set | 5 in1 Dumbbell Set with Connector,Used as Barbell,Kettlebells,Push up Stand,Fitness Exercises for Home Gym Suitable Men/Women by unnmiiy
- **How much does it cost?** $664.21 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/642917540-adjustable-dumbbell-set-20-30-45-70-90lbs-free-weight)

## Best For

- unnmiiy enthusiasts

## Why This Product

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

## Key Features

- • **Ultimate Space-Saver:** Replace bulky gym gear with one compact 5-in-1 set—dumbbells, barbells, kettlebells & push-up stands in seconds.
- • **Built to Last & Secure:** Thickened nut threads lock weights firmly in place—no wobble, no risk, just pure focus on your gains.
- • **Grip & Comfort Mastered:** 20mm thickened foam and non-slip ABS bars ensure sweat-proof, secure handling for intense workouts.
- • **Precision Weight Control:** Adjust weights smoothly from 2 to 22.5 lbs per dumbbell, perfect for progressive overload and all fitness levels.
- • **Effortless Home Gym Upgrade:** Compact design fits under 2ft², making it ideal for stylish, clutter-free home workouts that impress your circle.

## Overview

The UNNMIIY Adjustable Dumbbells 5-in-1 set offers a versatile, space-saving solution for home fitness enthusiasts. Crafted from durable alloy steel and high-quality PE materials, it features secure upgraded locking nuts and a comfortable, non-slip grip. With adjustable weights ranging from 2 to 22.5 lbs per dumbbell and quick conversion to barbells, kettlebells, and push-up stands, this set supports a full-body workout in minimal space—perfect for millennials seeking efficiency, style, and performance.

## Description

desertcart.com : UNNMIIY Adjustable Dumbbells, 20/30/45/70/90lbs Free Weight Set with | 5 in1 Dumbbell Set with Connector,Used as Barbell,Kettlebells,Push up Stand,Fitness Exercises for Home Gym Suitable Men/Women : Sports & Outdoors

Review: Very convenient adjustment dumbbells - I am very impressed with this adjustable dumbbell set. It is a solution that has four parts. It replaces many big pieces of gym equipment. This makes it perfect for a small gym in my home. I can switch between dumbbells, a barbell, kettlebells, and a stand for push-ups. This is convenient for me. It gives me all I need for a workout for my whole body. The system for connecting is secure. It is easy to use for anyone. Changing how I set it up take only a few seconds. The weights are strong. They are comfortable to hold. They feel very stable when I do exercises. I love that I can make resistance bigger little by little. I do curls, presses for my chest, squats, swings with kettlebells, and push-ups. Each piece feels solid and well-made. This set makes my workouts at home more effective. It makes them more fun too. It saves a lot of space if I compare it to normal free weights. For the price and different uses, it is one of the best money I spent on fitness.
Review: Perfect All-in-One Weight Set for Home Workouts! - I’ve been using this adjustable dumbbell set for a few weeks now and I’m genuinely impressed! The versatility is a game-changer — you can easily switch between dumbbells, kettlebells, a barbell, and even a push-up stand. It’s like having a full gym in one compact setup. The upgraded nut design keeps the weights secure and doesn’t loosen up mid-workout like cheaper sets I’ve used in the past. The build quality is solid and feels durable, even when loaded to the higher weights. I went with the 45lb option, which gives me more than enough range to grow with. Whether you're just starting or more advanced, this set is perfect. It’s also easy to store, which is ideal if you don’t have a ton of space. Highly recommend this for anyone serious about home fitness — great value, functionality, and quality!

## Features

- 5 in 1 Multifunctional Dumbbell Set:With UNNMIIY adjustable dumbbell set, you can get a pair of dumbbells also barbells, kettlebells, and push-up stands, which help you do many exercises including bench presses, squats, etc.Making it suitable for a range of exercises
- High Quality Materials:UNNMIIY Environmentally dumbbell pieces exterior is made of cement and iron sand.high-quality PE materials, and the inside is mixed with iron, mud, and sand, which effectively prevents floor abrasion.Deep grooves ensure easy grip
- 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
- Upgraded Nuts Enhanced Safety:UNNMIIY of the locking nuts enhance safety beyond regular multifunctional dumbbells.Nut thread thickening effectively keeps the dumbbell piece solid, to prevent movement shaking. Ensure your safety in use
- More Weight Options & Storage Space＜2Ft²:The dumbbell pieces feature a detachable design, and the adjustable weight range for the single dumbbell is 2lbs-22.5lbs, which meets your exercise intensity needs in different stages. Installation is easy
- Brand support: UNNMIIY is always committed to providing our customers with quality service. If you have any ideas about our products, we will be willing to make progress together with our customers to make this small gym more relaxing and enjoyable.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CZ3HT6X6 |
| Best Sellers Rank | #3,285 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #24 in Exercise & Fitness Dumbbells |
| Brand | UNNMIIY |
| Brand Name | UNNMIIY |
| Color | red |
| Customer Reviews | 4.4 out of 5 stars 2,148 Reviews |
| Handle Diameter | 24 millimeters |
| Handle Material | Alloy Steel |
| Item Dimensions L x W | 1"L x 1"W |
| Item Weight | 45 Pounds |
| Manufacturer | UNNMIIY |
| Material | Alloy Steel, Iron, Polyethylene (PE) |
| Model Number | AD55LBS |
| Number of Items | 2 |
| Number of Pieces | 2 |
| Other Special Features of the Product | ①Adjustable Weight ②5-in-1：dumbbells，barbells, kettlebells, weight plate，push-up stands ③Home workout ④Build quality ⑤Ease of use ⑥Versatility |
| Part Number | AD55LBS |
| Product Dimensions | 1"L x 1"W |
| Set Name | 5in1 Multifunctional Dumbbell Set |
| Special Feature | ①Adjustable Weight ②5-in-1：dumbbells，barbells, kettlebells, weight plate，push-up stands ③Home workout ④Build quality ⑤Ease of use ⑥Versatility 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 |
| Style | 45LB(22.5LB Pair) |
| Target Use Body Part | Arm |
| UPC | 763867653733 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** UNNMIIY
- **Color:** red
- **Item Weight:** 45 Pounds
- **Material:** Alloy Steel, Iron, Polyethylene (PE)

## Images

![Adjustable Dumbbell set,20/30/45/70/90lbs Free Weight Set | 5 in1 Dumbbell Set with Connector,Used as Barbell,Kettlebells,Push up Stand,Fitness Exercises for Home Gym Suitable Men/Women - Image 1](https://m.media-amazon.com/images/I/71lLqhkGDvL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very convenient adjustment dumbbells
*by T***D on November 22, 2025*

I am very impressed with this adjustable dumbbell set. It is a solution that has four parts. It replaces many big pieces of gym equipment. This makes it perfect for a small gym in my home. I can switch between dumbbells, a barbell, kettlebells, and a stand for push-ups. This is convenient for me. It gives me all I need for a workout for my whole body. The system for connecting is secure. It is easy to use for anyone. Changing how I set it up take only a few seconds. The weights are strong. They are comfortable to hold. They feel very stable when I do exercises. I love that I can make resistance bigger little by little. I do curls, presses for my chest, squats, swings with kettlebells, and push-ups. Each piece feels solid and well-made. This set makes my workouts at home more effective. It makes them more fun too. It saves a lot of space if I compare it to normal free weights. For the price and different uses, it is one of the best money I spent on fitness.

### ⭐⭐⭐⭐⭐ Perfect All-in-One Weight Set for Home Workouts!
*by C***E on December 26, 2025*

I’ve been using this adjustable dumbbell set for a few weeks now and I’m genuinely impressed! The versatility is a game-changer — you can easily switch between dumbbells, kettlebells, a barbell, and even a push-up stand. It’s like having a full gym in one compact setup. The upgraded nut design keeps the weights secure and doesn’t loosen up mid-workout like cheaper sets I’ve used in the past. The build quality is solid and feels durable, even when loaded to the higher weights. I went with the 45lb option, which gives me more than enough range to grow with. Whether you're just starting or more advanced, this set is perfect. It’s also easy to store, which is ideal if you don’t have a ton of space. Highly recommend this for anyone serious about home fitness — great value, functionality, and quality!

### ⭐⭐⭐⭐⭐ Versatile, High-Quality Dumbbell Set That’s Easy to Use and Perfect for Any Fitness Level!
*by G***E on January 28, 2025*

I bought the UNNMIIY 4-in-1 Multifunctional Dumbbell Set as a Christmas gift for my 18-year-old son, and he absolutely loves it! This set is incredibly versatile, allowing him to switch between dumbbells, barbells, kettlebells, and even push-up stands. He’s been able to do a variety of exercises, from bench presses to squats, all with just this one set. After watching the instructional video provided on Amazon, setting it up and using it was a breeze. The video was clear and made it super easy to get started, even for someone who’s new to fitness equipment. The quality of the materials is excellent. The weights are made with a durable mix of cement and iron sand encased in high-quality PE, which means no scratches on the floors. The thick, foam-padded connecting rod is a game-changer—it’s comfortable on the neck, non-slip, and sweat-absorbing, making workouts much more enjoyable. The upgraded locking nuts give me peace of mind knowing the weights are secure during use. The adjustable design and wide range of weights (2lbs-22.5lbs per dumbbell) mean it can grow with him as his fitness level improves. Plus, it’s compact and doesn’t take up much space—perfect for our home gym. Overall, this dumbbell set is a fantastic buy for anyone looking for versatility, quality, and ease of use. Highly recommend!

## Frequently Bought Together

- UNNMIIY Adjustable Dumbbells, 10/25/35/55/70/90lbs Free Weight Set with Connector, 4 in1 Dumbbells Set Used as Barbell, Kettlebells, Push up Stand, Fitness Exercises for Home Gym Suitable Men/Women
- Yoleo Adjustable Weight Bench for Full Body Workout; Foldable Bench Press Bench of Home Gym Strength Training; Incline Decline Flat Utility Workout Bench with Quick Folding& Fast Adjustment (Black)
- ProsourceFit Puzzle Exercise Mat ½ in, EVA Interlocking Foam Floor Tiles for Home Gym, Mat for Home Workout Equipment, Floor Padding for Kids, Black, 24 in x 24 in x ½ in, 48 Sq Ft

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/642917540-adjustable-dumbbell-set-20-30-45-70-90lbs-free-weight](https://www.desertcart.us/products/642917540-adjustable-dumbbell-set-20-30-45-70-90lbs-free-weight)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-24*