UNNMIIY 5-in-1 Adjustable Dumbbell Set, 20/30/45/70/90 lb options

UNNMIIY’s adjustable dumbbell set is presented as a five-function home workout system that converts between dumbbells, a barbell, a kettlebell and a push-up stand. The listed weight options need clarification: the page also gives a 30-pound item weight, so do not assume the title’s five weight figures describe the weight of one included set.

At a glance

Listing describes conversion for dumbbell, barbell, kettlebell and push-up stand configurations, plus separate weight-plate use.
Manufacturer describes non-slip textured grips and five reinforced safety nuts for securing plates.
Connecting rod is described as having a 5mm steel pipe and 20mm foam covering.

Price

$66.99Save 26%

Reference price: ~~$89.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

The multi-configuration design could consolidate several types of home strength-training equipment.
Adjustable plates are intended to let users change resistance without buying separate fixed-weight dumbbells.
The described textured grips and foam-covered connecting rod address handling comfort during different exercises.

Technical specifications

8 specifications

Identity
Brand	UNNMIIY

Weight and dimensions
Weight listed	30 pounds
Listed dimensions	1"L x 1"W

Materials and design
Material listed	Alloy Steel
Color	Black and Red
Style	Adjustable
Special feature	No-Roll Head

Configuration
Number of pieces	5

What to know before buying

Listing details to confirm

The listing’s title gives 20/30/45/70/90 lb options, while product details list a 30-pound item weight. The five-piece count and stated weight selection do not establish the exact included plate combinations or total set weight. Confirm the selected listing’s weight configuration before buying.

Who is it for?

A good fit for

Home exercisers seeking one adjustable set that the listing says can be assembled for several exercise formats.
Buyers who want adjustable weights for arm, shoulder and broader strength-training routines.

Less suited to

Buyers who need verified exact plate weights or a clearly stated total set weight without confirming the configuration first.

UNNMIIY 5-in-1 Adjustable Dumbbell Set, 20/30/45/70/90 lb options · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 160 ratings

5 stars64%64%
4 stars18%18%
3 stars8%8%
2 stars5%5%
1 star5%5%

Customer feedback describes this as a versatile starter set for home workouts and reports that adjusting weights and assembling it are generally straightforward. Feedback is mixed on weight selection, with some reports that the weights are off, and some customers say frequent tightening can be annoying. That matters especially here because the listing itself does not clearly reconcile its five advertised weight options with the 30-pound item-weight entry.

Positive themes

Customer feedback characterizes it as a useful, versatile starter set for home exercise and says adjustment and initial assembly are generally easy.

Negative themes

Some customers report needing to tighten the set repeatedly during use, which may interrupt workouts.

Mixed feedback

Weight selection receives mixed feedback, including reports that weights are off.

Frequently asked questions

What exercise configurations does the listing describe?

It claims the set can convert to dumbbells, a barbell, a kettlebell and a push-up stand, and can also be used with separate weight plates.

How much does the set weigh?

The details list an item weight of 30 pounds, but the title also lists 20/30/45/70/90 lb options. The exact selected configuration and total weight are not clear from the supplied details, so confirm them before purchase.

Are the plates described as locking in place?

The manufacturer describes five reinforced safety nuts with thick threads intended to hold the plates securely. This is a product claim, not an independent safety assessment.