PowerBlock Pro 100 Adjustable Dumbbell
- 100 pound listed weight, adjustable
- Single dumbbell, not a pair
- 38 mm handle, rubber material
- 19.2 x 7.6 inches overall
- Alloy steel body, black
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A single adjustable dumbbell for lifters who want one unit to cover many loads. It is sold singly and the adjustment range is not spelled out, so buy two for a pair and check the steps.
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ASIN: B0CTJ627VDModel: 504-00187-00Category: Dumbbells
Overview
A garage gym or a cramped apartment corner is where a single adjustable unit like this PowerBlock earns its place. The body is alloy steel with a rubber handle, and weight is changed rather than fixed.
One unit replaces a rack of fixed weights, which saves floor space. The limitation is the single-unit sale and a weight line that does not say what the range or increments are.
Who it's for
Small training areas and one-arm exercises are the setting. Anyone planning two-handed matched work must buy a second unit, and buyers who need exact load increments should confirm them with the seller.
Pros and cons
- Alloy steel body
- Sold as a single unit
- Adjustment range unspecified
- Increment steps are undocumented
- Rubber handle width may suit few hands
Performance notes
An adjustable dumbbell changes load by moving the weight stack or pin, and how securely that selection locks decides how safe it feels on a swinging set. The rubber handle gives grip, while a wider body can limit certain movements.
Specifications
| Brand | PowerBlock |
|---|---|
| Model | 504-00187-00 |
| Dimensions & fit | |
| Handle Diameter | 38 mmhigher than 75% of 58 dumbbells |
| Item Dimensions L X W | 19.2 x 7.6 inches |
| Item weight | 100 pounds |
| Construction & materials | |
| Material | Alloy Steel |
| Handle Material | Rubber |
| Color | Black |
| Included components | |
| Unit Count | 1.0 Count |
| Other details | |
| Target Use Body Part | Arm |
| Style | Adjustable |
| Other Special Features Of The Product | Adjustable Weight |
| Set Name | Single |
Closest rivals on specs
NÜOBELL Adjustable Dumbbell Set- Item Weight 100 vs 80 pounds (+25%)
- Handle Diameter 1.5 vs 1.3 inches (+15%)
10-in-1 Adjustable Dumbbell with Storage Tray- Item Weight 100 vs 50 pounds (+100%)
Frequently asked questions
Is the PowerBlock 504-00187-00 a pair of dumbbells?
No. The set name is single and the item count is 1, so order two for a matched pair.
What is the PowerBlock 504-00187-00 handle made of?
The handle material is rubber, with a diameter of 38 mm.
Can the PowerBlock 504-00187-00 weight be changed?
Yes. The style is adjustable and the listing tags adjustable weight, but it does not give the increments.