---
product_id: 630498650
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: "¥146437"
currency: JPY
in_stock: true
reviews_count: 8
category: "Unnmiiy"
url: https://www.desertcart.jp/products/630498650-adjustable-dumbbell-set-20-30-45-70-90lbs-free-weight
store_origin: JP
region: Japan
---

# Adjustable 2-35 lbs per dumbbell Upgraded locking nuts for safety 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:** ¥146437
**Availability:** ✅ In Stock

## Summary

> 🔥 Transform your home workouts with the all-in-one powerhouse set!

## 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?** ¥146437 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/630498650-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

- • **Compact Powerhouse:** Fits perfectly in under 2 ft² of space—ideal for stylish home gyms where every inch counts.
- • **Ultimate Space-Saver:** Replace bulky gym gear with one sleek 5-in-1 set—dumbbells, barbells, kettlebells & push-up stands all in one.
- • **Built to Last & Protect:** High-quality PE and iron composite plates prevent floor damage while upgraded nuts lock weights firmly in place.
- • **Grip & Comfort Mastered:** Non-slip ABS bars with thickened foam grips ensure sweat-proof, secure handling for every rep.
- • **Precision Weight Control:** Adjust weights from 2 to 35 lbs per dumbbell effortlessly to match every fitness level and progression.

## Overview

The UNNMIIY Adjustable Dumbbell Set is a versatile 5-in-1 fitness solution combining dumbbells, barbells, kettlebells, and push-up stands with adjustable weights from 2 to 35 lbs per dumbbell. Crafted with durable PE and iron composite plates, non-slip ABS bars, and upgraded locking nuts, it offers secure, comfortable handling and protects floors. Compact and easy to store, it’s perfect for millennials seeking a stylish, space-efficient home gym upgrade.

## Description

Product description THE BEST FITNESS FOR WEIGHT TRAINING 45LBS Adjustable Dumbbell 20LBS Adjustable Dumbbell 30LBS Adjustable Dumbbell 70LBS Adjustable Dumbbell 90LBS Adjustable Dumbbell

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!
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.

## 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-35lbs, 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 | B0CZ3BWFZN |
| Best Sellers Rank | #3,346 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #20 in Exercise & Fitness Dumbbells |
| Brand | UNNMIIY |
| Brand Name | UNNMIIY |
| Color | red |
| Customer Reviews | 4.4 out of 5 stars 2,076 Reviews |
| Handle Diameter | 5 millimeters NaN |
| Handle Material | ABS Plastic |
| Item Dimensions L x W | 1"L x 1"W |
| Item Weight | 70 Pounds |
| Manufacturer | UNNMIIY |
| Material | Alloy Steel, Iron, Polyethylene (PE) |
| Model Number | AD70LBS |
| Number of Items | 1 |
| Number of Pieces | 16 |
| 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 | AD70LBS |
| Product Dimensions | 1"L x 1"W |
| Set Name | 4 in 1 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 | 70LB(35LB Pair) |
| Target Use Body Part | Whole Body |
| UPC | 763867653726 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** UNNMIIY
- **Color:** red
- **Item Weight:** 70 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

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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
- NICEPEOPLE Basic Weight Bench for Home Gym, Foldable Workout Bench with 8 Backrests, 660LBS Weight Capacity Adjustable Bench
- ProsourceFit Puzzle Exercise Mat ½ in, EVA Interlocking Foam Floor Tiles for Home Gym, Mat for Home Workout Equipment, Floor Padding for Kids, Brown, 24 in x 24 in x ½ in, 24 Sq Ft - 6 Tiles

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-09*